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Hunter's Tropical Medicine and Emerging Infectious Disease E-Book

Hunter's Tropical Medicine and Emerging Infectious Disease E-Book

Alan J. Magill | G. Thomas Strickland | James H. Maguire | Edward T Ryan | Tom Solomon

(2012)

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Abstract

Hunter’s Tropical Medicine and Emerging Infectious Disease is your comprehensive, go-to resource on the health conditions that arise in the tropics! From infectious diseases through environmental issues, poisoning and toxicology, animal injuries, and nutritional and micronutrient deficiencies, this medical reference book provides you with all the guidance you need to diagnose and manage even the most exotic health concerns. Stay at the forefront of this ever-changing field with Hunter’s Tropical Medicine and Emerging Infectious Disease!

    • Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability.
    • Understand the common characteristics and methods of transmission for each disease, and learn all the applicable diagnosis, treatment, control, and prevention techniques.
    • Get the information you need in the most organized way with infectious agents arranged by syndromes, as they typically present.
    • Stay abreast of the latest maladies seen in returning travelers through useful chapters on delusional parasitosis, international adoptions, transplant patients, medical tourism, and more.
    • Access the most up-to-date information on emerging and re-emerging diseases (such as H1N1), and see how progression occurs through all-new illustrative life cycles.
    • Hone your techniques with a new skills-based section which includes dentistry, neonatal pediatrics and ICMI, and surgery in the tropics, and a service-based section covering transfusion in resource-poor settings, microbiology, and imaging.
    • Learn everything you need to know about infrequently encountered tropical drugs and their practical application in the clinical setting.

     


    Table of Contents

    Section Title Page Action Price
    Front cover cover
    Half title page i
    Acknowledgements ii
    Hunter's Tropical Medicine and Emerging Infectious Disease iii
    Copyright page iv
    Table of Contents v
    Preface xiii
    List of Contributors xiv
    1 Clinical Practice in the Tropics 1
    A Organ-Based Chapters 3
    1 Tropical Lung Diseases 4
    Introduction 4
    Pneumonia 4
    Investigations and Management 4
    Atypical Pneumonia 7
    Other Conditions Associated with Pulmonary Infection 7
    Eosinophilic Pneumonias 8
    Bronchiectasis, Asthma, Chronic Obstructive Pulmonary Disease 8
    Pleural Effusion 10
    Nontuberculous Granulomatous Lung Disease 10
    Occupational and Dust Lung Diseases 10
    References 11
    2 Cardiovascular Diseases 12
    Common Syndromes of Cardiovascular Disease in the Tropics 12
    Heart Failure 12
    Stroke 12
    Vascular Disorders 13
    An Approach to the Patient with Cardiovascular Disease 14
    Diagnosis and Differential Diagnosis 14
    Heart Failure 14
    Stroke 15
    Vascular Disorders 16
    Management and Outcomes 16
    Pediatric Consideration: Congenital Heart Disease 16
    Clinical Presentation 16
    References 17
    3 Gastrointestinal Diseases 18
    Presentations 18
    Diarrhea 18
    Etiology and Distribution 18
    Transmission and Epidemiology 18
    Pathogenesis 18
    Clinical Manifestations 18
    Antibiotic-Associated Colitis 19
    Chronic Diarrhea 19
    Complications 19
    Diagnosis 20
    Treatment and Prognosis 20
    Treatment of Dehydration 20
    Antimicrobial Agents 20
    Additional Therapy 20
    Prevention and Control 20
    Traveler’s Diarrhea 20
    Abdominal Pain 21
    Abdominal Distension 21
    Intestinal Obstruction 21
    Gastrointestinal Bleeding 21
    Anatomic Differentials 22
    Mouth 22
    Dental Caries 22
    Oral Cancer 22
    Candidiasis 22
    Herpes Simplex Virus Infection 22
    Cancrum Oris (Noma) 22
    Esophagus 22
    Esophagitis 22
    Caustic Esophageal Injury 22
    Esophageal Varices 22
    Megaesophagus 22
    Esophageal Cancer 23
    Stomach 23
    Gastritis 23
    Peptic Ulcer Disease 23
    Gastric Neoplasms 23
    Small Bowel 23
    Tropical Sprue 23
    Celiac Disease 24
    Protein-Losing Enteropathy 24
    Immunoproliferative Small Intestinal Disease 24
    Pathology 24
    Clinical Manifestations and Diagnosis 24
    Treatment and Prognosis 25
    Enteritis Necroticans (Pigbel) 25
    Intussusception 25
    Colon 25
    Appendicitis 25
    Intestinal Tuberculosis 25
    Inflammatory Bowel Disease 25
    Megacolon 26
    Stenosing Lesions of the Colon and Rectum 26
    Rectum and Anus 26
    Proctitis 26
    Rectal Prolapse 26
    Anal Lesions 26
    Anal Cancer 26
    Gastrointestinal Diseases in Patients with HIV/AIDS 26
    References 27
    4 Hepatobiliary Diseases 28
    Introduction 28
    Approach to Liver Disease 28
    Hepatitis and Jaundice (Table 4-2 and Fig. 4.1) 29
    Acute Hepatitis 29
    Chronic Liver Disease 31
    Jaundice and Biliary Obstruction 32
    Vascular Liver Disease (see Table 4-2) 32
    Focal Liver Lesions (Table 4-4) 32
    HIV and the Liver (Table 4-5) 33
    References 33
    5 Hematologic Diseases 35
    Anemia 35
    Etiology 35
    Epidemiology 35
    Diagnosis 35
    Clinical Features 35
    Management Principles 36
    Anemia Caused by Reduced Red Cell Production 36
    Iron Deficiency (Table 5-4) 36
    Folate Deficiency 37
    Vitamin B12 Deficiency 37
    Anemia Caused by Excessive Loss of Red Cells 37
    Anemia Caused by Reduced Bone Marrow Activity 37
    Anemia of Inflammation 37
    Anemia and HIV 38
    Anemia and Parvovirus B19 38
    Anemia Caused by Excessive Red Cell Destruction (Hemolytic Anemias) 38
    Important Tropical Infections Associated with Anemia 38
    Malaria 38
    Visceral Leishmaniasis 38
    Thalassemias 38
    β-Thalassemia 38
    β-Thalassemia Major 38
    Investigations 38
    Management and Outcome 40
    β-Thalassemia Intermedia 40
    β-Thalassemia Trait 40
    α-Thalassemia 40
    Silent Carrier (-α/αα) 40
    α-Thalassaemia Trait (-α/-α or –/αα) 40
    Hemoglobin H Disease (HbH) (–/-α) 40
    Hemoglobin Bart’s Hydrops Fetalis 40
    Sickle Cell Hemoglobinopathies 41
    Sickle Cell Disease (HbSS) [11] 41
    Investigations 42
    Management and Outcome 42
    Sickle Cell Trait 42
    Hemoglobin Sickle Cell (SC) Disease 43
    Hemoglobin S (HbS) β-Thalassemia 43
    Enzymopathies 43
    Glucose-6-Phosphate Dehydrogenase (G6PD) Deficiency 43
    Neonatal Jaundice 43
    Acute Hemolysis 43
    Chronic Hemolysis 43
    Investigations 43
    Red Cell Membrane Defects 43
    White Cell Disorders 43
    Leukemia 44
    Acute Leukemias 44
    Investigations 44
    Management and Outcome 44
    Chronic Myeloid Leukemia (CML) 44
    2 Viral Diseases 213
    Introduction and General Principles 214
    Introduction 214
    Epidemiologic Considerations 214
    Clinical Syndromes and Pathogenesis 215
    Diagnostic Challenges 215
    Opportunities for Treatment 215
    Disease Control 216
    References 216
    27 Human Immunodeficiency Virus Infection 217
    Introduction 217
    Epidemiology 218
    Molecular Epidemiology 218
    Modes of Transmission 218
    Geographic Epidemiology 219
    Sub-Saharan Africa 219
    Asia 220
    Latin America 220
    Natural History, Pathogenesis and Pathology 222
    Manifestations and Management of HIV Infection and Complications of HIV Disease 223
    Acute HIV Infection 223
    Staging of HIV Disease 225
    Opportunistic Illnesses 225
    Select Major Opportunistic Infections and Co-Infections 228
    Fungal Infections—Focus on Cryptococcal Meningitis and Pneumocystis Pneumonia 228
    Cryptococcal Meningitis 228
    Pneumocystis Pneumonia 229
    Bacterial Infections 229
    Sexually Transmitted Infections (STIs) 229
    Viral Hepatitis 229
    Select Major Clinical Syndromes 230
    Fever 230
    Dermatologic Disease 230
    Ophthalmologic Disease 231
    Pulmonary Disease 231
    Esophageal Disease 231
    Gastroenteritis/Diarrheal Disease 231
    Focal Central Nervous System (CNS) Lesions 232
    Immune Reconstitution Inflammatory Syndrome (IRIS) 232
    HIV-Associated Malignancies 232
    Kaposi’s Sarcoma (KS) 232
    Non-Hodgkin Lymphoma 232
    Cervical Cancer 232
    Patient Evaluation, Diagnosis and Differential Diagnosis 233
    HIV Testing 233
    HIV Diagnosis 233
    HIV Counseling 233
    Initial Evaluation of the Newly Diagnosed Patient 234
    Initial Evaluation of Newly Diagnosed Women of Reproductive Age 234
    Antiretroviral Therapy (Art) 234
    Introduction 234
    Goals of ART 235
    Art: When to Start 235
    ART: Initiating Therapy for Women of Reproductive Age 235
    Art: What to Start 235
    ART: What to Start—Special Considerations for Women Previously Given Antiretroviral Drugs as Prevention of Mother-to-Child Transmission (PMTCT) of HIV 235
    ART: What to Start—Special Considerations for Pregnant Women 236
    ART: What to Start—Special Considerations in Patients with Chronic Hepatitis B Virus (HBV) Infection 236
    Art: Adherence to Therapy 236
    Art: Monitoring the Effectiveness of ART 237
    Art: Monitoring for Tolerability 237
    Art: Metabolic Complications during Treatment 238
    Art: When to Change ART 238
    Art: How to Change (Switch) ART 238
    ART for Children 238
    Prevention 238
    Special Considerations for Antimicrobial Prophylaxis in Resource-Limited Settings 238
    Trimethoprim-Sulfamethoxazole/Cotrimoxazole 238
    Fluconazole and Itraconazole 239
    Non-Tuberculosis Anti-Mycobacterials [Mycobacterium Avium Complex (MAC)] 239
    Non-Pharmacologic Interventions 239
    Chronic Primary Care Considerations 239
    Smoking Cessation 239
    Mental Health 239
    Vaccinations 239
    Nutrition 239
    Primary HIV Prevention 239
    Prevention with Positives 240
    Palliative Care 240
    References 240
    27.1 HIV, Tuberculosis, Malaria and Streptococcus pneumoniae 248
    HIV and Tuberculosis 248
    The Effect of HIV on Tuberculosis 248
    The Effect of Tuberculosis on HIV Disease 248
    3 Bacterial Infections 381
    A Infections of the Eye & Throat 383
    35 Trachoma and Inclusion Conjunctivitis 384
    35.1 Trachoma 384
    Introduction 384
    Epidemiology 384
    Natural History, Pathogenesis and Pathology 384
    Clinical Features 386
    Patient Evaluation, Diagnosis and Differential Diagnosis 386
    Treatment 387
    Active Trachoma (Trachomatous Inflammation Follicular and/or Trachoma Inflammation Intense) 387
    Complications from Chronic Disease 388
    Prevention and Control 388
    35.2 Inclusion Conjunctivitis 389
    Introduction 389
    Epidemiology 389
    Natural History, Pathogenesis and Pathology 389
    Clinical Features 389
    Patient Evaluation, Diagnosis and Differential Diagnosis 389
    Treatment 389
    Prevention and Control 389
    References 390
    36 Group A Streptococcus 391
    Introduction 391
    Epidemiology 391
    Natural History, Pathogenesis and Pathology 391
    Clinical Features 392
    Patient Evaluation, Diagnosis and Differential Diagnosis 394
    Treatment 397
    References 401
    37 Diphtheria 402
    Introduction 402
    Epidemiology 402
    Natural History, Pathogenesis and Pathology 403
    Clinical Features 404
    Patient Evaluation, Diagnosis and Differential Diagnosis 405
    Treatment 405
    Prevention 406
    References 406
    B Respiratory Tract Infections 407
    38 Bacterial Pneumonia 408
    Introduction 408
    Epidemiology 408
    The Bacterial Etiology of Pneumonia 408
    Natural History, Pathogenesis and Pathology 410
    Clinical Features 410
    Patient Evaluation, Diagnosis and Differential Diagnosis 410
    Clinical Examination Findings 410
    Supportive Clinical Findings 411
    Laboratory Investigations 411
    Chest Roentgenograms (Chest X-Rays) 411
    Miscellaneous Clinical Findings 411
    Differential Diagnosis 411
    Reactive Airways Disease (RAD or Asthma) 411
    Bronchiolitis 411
    Tuberculosis 411
    Malaria 411
    Foreign Body Aspiration 411
    Pertussis 411
    Diphtheria 411
    Treatment 414
    Good Clinical Practice 414
    Prevention and Control 414
    References 414
    39 Tuberculosis 416
    Introduction 416
    Epidemiology 416
    Natural History, Pathogenesis, and Pathology 416
    Clinical Features 418
    Pulmonary Tuberculosis 418
    Tuberculous Adenitis 418
    Pleural Tuberculosis 418
    Tuberculosis of the Central Nervous System 419
    Osteoarticular Tuberculosis 419
    Other Manifestations 419
    Patient Evaluation, Diagnosis and Differential Diagnosis 420
    Sputum Smear Microscopy 420
    Radiography 420
    Tuberculosis Culture 421
    Analysis of other Bodily Fluids and Tissue Samples 421
    Other Diagnostic Tests 421
    Tests for Tuberculosis Infection 421
    Empiric Treatment of Tuberculosis 421
    Monitoring Treatment Response 422
    Treatment 422
    Treatment of Patients with Drug-Susceptible Tuberculosis 429
    Retreatment Regimens and the Treatment of Individuals with Drug-Resistant Tuberculosis 429
    Adjunctive Treatments 430
    Adherence 431
    Treatment of Latent Tuberculosis Infection 431
    References 431
    40 Pertussis 433
    Introduction 433
    Epidemiology 433
    Natural History, Pathogenesis and Pathology 434
    Clinical Manifestations 434
    Patient Evaluation 435
    Clinical Diagnosis 435
    Laboratory Diagnosis 435
    Serology 435
    Treatment 436
    Immunization Strategies 436
    References 436
    C Gastrointestinal Tract Infections 437
    41 Helicobacter pylori Infection 438
    Introduction 438
    Epidemiology 438
    Natural History, Pathogenesis and Pathology 438
    Pathogenesis 438
    Clinical Features 439
    Gastritis 439
    Peptic Ulcer Disease 439
    Gastric Cancer 439
    Mucosa-Associated Lymphoid Tissue (MALT) Lymphoma 439
    Ménétrier’s Disease 439
    Gastroesophageal Reflux Disease (GERD) 439
    H. pylori Infection in Children 439
    Patient Evaluation, Diagnosis and Differential Diagnosis 439
    Noninvasive Tests [10] 440
    Urea Breath Tests 440
    Serology 440
    Fecal Antigen Testing 440
    Invasive Tests [10] 440
    Culture 440
    Histology 440
    Rapid Urease Test 441
    Treatment 441
    Indications 441
    Antimicrobials 441
    Alternatives 441
    References 441
    42 Escherichia coli Diarrhea 442
    Introduction 442
    Epidemiology 442
    Etiologic Agents 442
    Distribution and Incidence 442
    Transmission 442
    Natural History, Pathogenesis and Pathology 443
    Enterotoxigenic Escherichia coli (ETEC) 443
    Enteropathogenic Escherichia coli (EPEC) 443
    Enteroinvasive Escherichia coli (EIEC) 443
    Enterohemorrhagic Escherichia coli (EHEC) 443
    Enteroaggregative Escherichia coli (EAEC) 443
    Diffuse-adherent Escherichia coli (DAEC) 443
    Clinical Features 443
    Enterotoxigenic Escherichia coli (ETEC) 444
    Enteropathogenic Escherichia coli (EPEC) 444
    Enteroinvasive Escherichia coli (EIEC) 444
    Enterohemorrhagic Escherichia coli (EHEC) 444
    Enteroaggregative Escherichia coli (EAEC) 444
    Diffuse-adherent Escherichia coli (DAEC) 444
    Patient Evaluation, Diagnosis and Differential Diagnosis 444
    Indicative Clinical Features 444
    ETEC 444
    EPEC 444
    EIEC 445
    EHEC 445
    EAEC 445
    DAEC 445
    Laboratory Tests 445
    Stool Culture 445
    Immunoassays 445
    DNA Probes and PCR 445
    Adherence to HEp-2 cells 445
    Serology 446
    Stool microscopy 446
    Treatment 446
    Prevention and Control 446
    References 446
    43 Cholera and Other Vibrios 448
    Vibrio cholerae 448
    Introduction 448
    Epidemiology 448
    Natural History, Pathogenesis and Pathology 448
    Clinical Features 448
    Patient Evaluation, Diagnosis and Differential Diagnosis 449
    Treatment 449
    Correction of Fluid Loss 449
    Antibiotics 450
    Prevention 451
    Other Vibrios 453
    Vibrio parahaemolyticus 453
    Vibrio vulnificus 453
    References 453
    44 Shigellosis 454
    Introduction 454
    Epidemiology 454
    Natural History, Pathogenesis and Pathology 454
    Clinical Features 455
    Patient Evaluation, Diagnosis, and Differential Diagnosis 456
    Treatment 459
    Antimicrobial Therapy 459
    Supportive Therapy and Treatment of Complications 459
    References 461
    45 Nontyphoid Salmonella Disease 462
    Introduction 462
    Epidemiology 462
    Natural History, Pathogenesis, and Pathology 463
    Diarrheal Disease 463
    Invasive Disease 463
    Microbiology 463
    Clinical Features 464
    Diarrheal NTS Disease 464
    Invasive Disease (iNTS) 464
    Recurrent iNTS Disease 464
    Focal and Suppurative NTS Disease 464
    Patient Evaluation, Diagnosis, and Differential Diagnosis 465
    4 The Mycoses 607
    76 General Principles 608
    Distribution and Medical Importance 608
    Morphology 608
    Diagnosis 608
    Disease Classification 608
    Superficial Mycoses (see Chapter 77) 608
    Subcutaneous Mycoses or Mycoses of Implantation (see Chapter 78) 609
    Systemic Mycoses (see Chapters 79, 80) 609
    References 609
    77 Superficial Mycoses 610
    77.1 Dermatophyte Infection (Ringworm, Tinea) 610
    Introduction 610
    Epidemiology 610
    Tinea Imbricata 610
    Natural History, Pathology, and Pathogenesis 610
    Clinical Manifestations 610
    Foot Infections 610
    Tinea Cruris (Ringworm of the Groin) 611
    Tinea Corporis (Ringworm of the Body) 611
    Tinea Capitis (Ringworm of the Scalp) 611
    Onychomycosis 612
    Dermatophytosis of Other Sites 612
    Diagnosis 612
    Culture 612
    Treatment 612
    Topical Therapy 612
    Topical Antifungals 612
    Systemic Therapy 612
    77.2 Superficial Candidiasis 612
    Definition 612
    Epidemiology 612
    Natural History and Pathogenesis 613
    Clinical Manifestations 613
    Oral Candidiasis (Thrush) 613
    Vaginal Candidiasis 613
    Paronychia and Candida Onychomycosis 613
    Candida Intertrigo 613
    Diagnosis 613
    Treatment 613
    77.3 Pityriasis (Tinea) Versicolor 613
    Introduction 613
    Epidemiology 614
    Pathology and Pathogenesis 614
    Clinical Manifestations 614
    Diagnosis 614
    Treatment 614
    77.4 Other Superficial Mycoses 614
    Black Piedra 614
    White Piedra 614
    Tinea Nigra 614
    References 614
    78 Subcutaneous Mycoses: 616
    5 Protozoal Infections 655
    88 General Principles 656
    Parasitism 656
    6 Helminthic Infections 793
    106 General Principles 794
    Definitions 794
    Classification 794
    Annelida 794
    Nematoda 794
    Adults That Reside in the Gut 794
    Adults That Reside in the Blood, Lymphatic, or Subcutaneous Tissues 794
    Larval Stages that Cause Human Pathologic Conditions in Various Tissues 794
    Infections That Are Usually Limited to the Skin and Subcutaneous Tissues 794
    Infections Primarily Involving the Muscles 794
    Infections Causing a Visceral Larva Migrans Syndrome 794
    Platyhelminthes 794
    Trematoda 794
    Cestoda 795
    Anatomy and Physiology 795
    Transmission 795
    Oral Transmission 795
    Transmission by Skin Penetration 795
    Transmission by Bite of a Vector 795
    Magnitude of the Health Problem 795
    Tropics and Subtropics 795
    Temperate Climates 795
    Migrants and Travelers 795
    Chemotherapy 795
    A Intestinal Nematode Infections 797
    107 Nematodes Limited to the Intestinal Tract (Enterobius vermicularis, Trichuris trichiura, Capillaria philippinensis and Trichostrongylus spp.) 798
    Enterobiasis 798
    Epidemiology 798
    Natural History, Pathogenesis and Pathology 798
    Clinical Features 798
    Patient Evaluation, Diagnosis, and Differential Diagnosis 798
    Treatment 799
    Trichuriasis 800
    Epidemiology 800
    Natural History, Pathogenesis and Pathology 800
    Patient Evaluation, Diagnosis, and Differential Diagnosis 802
    7 Poisonous and Toxic Plants and Animals 923
    133 Poisonous Plants and Aquatic Animals 924
    133.1 Poisonous Aquatic Animals 924
    Introduction: Seafood Poisoning [1] 924
    Prevention of Seafood Poisoning 924
    Reference 924
    133.2 Fish Poisoning: Gastrointestinal and Neurotoxic Syndromes 925
    Neurotoxic Fish Poisoning 925
    Ciguatera Fish Poisoning [1, 2] 925
    Tetrodotoxin Poisoning 925
    Histamine-Like Syndrome (Scombrotoxic Poisoning) 926
    Palytoxin Poisoning [3] 926
    Poisoning by Ingesting Carp’s Gallbladder [4] 926
    Pfiesteria-Associated Possible Estuary Associated Syndrome (Peas) 927
    Differential Diagnosis of Seafood Poisoning 927
    Treatment of Seafood Poisoning [5] 927
    References 927
    133.3 Mushroom Poisoning 927
    Illness after Mushroom Ingestion 927
    Fungal Poisoning—Causes and Circumstances 927
    Diagnosis [1, 2] 928
    Fungal Toxins 928
    Cytotoxic Fungi [3] 928
    Amatoxins 928
    Species 928
    Mechanisms of Toxicity 928
    Symptoms 928
    Management [4] 929
    Orellanine [5, 6] 929
    8 Nutritional Problems and Deficiency Diseases 987
    137 General Principles 988
    138 Protein-energy Malnutrition in Children 989
    Introduction 989
    Epidemiology and Consequences 989
    Causes of Protein-Energy Malnutrition (Pem) 989
    Clinical Features 991
    Management of Mild or Moderate Malnutrition 992
    Phases of Management of Severe Acute Malnutrition (SAM) 992
    Step 1: Treat/Prevent Hypoglycemia 992
    Step 2: Treat/Prevent Hypothermia 994
    Step 3: Treat/Prevent Dehydration 994
    Step 4: Correct Electrolyte Imbalance 994
    Step 5: Treat Infection 994
    Step 6: Correct Micronutrient Deficiencies 994
    Step 7: Start Cautious Feeding 995
    Criteria for Increasing Volume/Decreasing Frequency of F-75 Feeds 995
    Step 8: Achieve Catch-up Growth 995
    Step 9: Provide Sensory Stimulation and Emotional Support 995
    Step 10: Prepare for Follow-up After Recovery 995
    Treatment of Complications 995
    Community-Based Management of SAM 995
    Dose of Ready-to-Use-Therapeutic Food (Rutf) 996
    Reference 996
    Further Reading 996
    139 Vitamin Deficiencies 997
    Introduction and Significance 997
    Vitamin A 997
    Clinical Manifestations, Diagnosis and Prevention of Vitamin A Deficiency (VAD) 998
    Xerophthalmia 998
    Diagnosis of vitamin A deficiency (VAD) 998
    Prevention of vitamin A deficiency (VAD) 999
    Clinically Imporant B Vitamin Deficiencies 999
    Beriberi and Thiamine (Vitamin B1) 999
    Ariboflavinosis and Riboflavin (Vitamin B2) 999
    Pellagra and Niacin (Vitamin B3) 999
    Folate (Vitamin B9) 1000
    Vitamin B12 (the Cobalamins) 1000
    Scurvy and Vitamin C (Ascorbic Acid) 1000
    Rickets, Osteomalacia and Vitamin D 1000
    Diagnosis of Vitamin D Deficiency (VDD) 1001
    Treatment of Vitmain D Deficiency (VDD) 1001
    Prevention of Vitamin D Deficiency (VDD) 1001
    References 1001
    140 Mineral Deficiencies 1003
    Introduction 1003
    Iron 1003
    Global Burden of Iron Deficiency 1003
    Overview of Iron Biology 1003
    Causes of Iron Deficiency 1005
    Assessment of Iron Status 1005
    Persons Affected and Consequences of Iron Deficiency 1005
    Control of Iron Deficiency 1005
    Conclusion 1005
    Zinc 1005
    Global Burden of Zinc Deficiency 1005
    Overview of Zinc Biology 1005
    Causes of Zinc Deficiency 1006
    Assessment of Zinc Status 1006
    Persons Affected and Consequences of Zinc Deficiency 1006
    Control of Zinc Deficiency 1006
    9 Vector Transmission of Diseases and Zoonoses 1011
    141 Arthropods in Disease Transmission 1012
    History 1012
    Disease Transmission 1012
    Mechanical Transmission 1012
    Biologic Transmission 1012
    Propagative 1012
    Cyclopropagative 1012
    Cyclodevelopmental 1012
    Transovarial or Vertical 1012
    Extrinsic Incubation Period 1013
    Factors Influencing Transmission 1013
    Systematics 1013
    Importance 1016
    References 1016
    10 The Sick Returning Traveller 1017
    142 General Principles 1018
    References 1020
    143 Fever in the Returned Traveler 1021
    Introduction 1021
    Epidemiology 1021
    Individual Factors 1021
    Pathogen Factors 1021
    Clinical Features 1021
    Undifferentiated Fever 1022
    Malaria [7] 1022
    Enteric Fever (Salmonella typhi, S. paratyphi) 1022
    Rickettsiae 1022
    Arbovirus 1022
    Acute Schistosomiasis (Katayama Fever) 1024
    Leptospirosis 1025
    Amebic Liver Abscess [21] 1025
    Brucellosis [22] 1025
    Q Fever (Coxiella burnetii) [23] 1025
    HIV and Other STIs 1025
    Respiratory Tract Infections 1025
    Upper Respiratory Tract Infections 1025
    Lower Respiratory Tract Infections 1025
    Gastrointestinal Infections 1026
    Diarrhea 1026
    Abdominal Pain 1026
    Jaundice 1026
    Neurologic Infections 1026
    Meningitis 1026
    Encephalitis 1026
    Patient Evaluation, Diagnosis, and Differential Diagnosis [5] 1026
    Treatment 1026
    Malaria 1027
    Amebic Liver Abscess 1027
    Enteric Fever 1028
    Leptospirosis 1028
    Rickettsiae 1028
    Acute Schistosomiasis 1028
    Bacterial Sepsis 1028
    References 1031
    144 Malaria in the Returned Traveler 1032
    Introduction 1032
    Epidemiology 1032
    Clinical Features 1032
    Uncomplicated Malaria 1032
    Severe or Complicated Malaria 1032
    Patient Evaluation and Differential Diagnosis 1032
    Treatment 1033
    Uncomplicated Disease 1033
    Non-Falciparum 1033
    Falciparum 1034
    Severe Disease 1035
    Chemotherapy 1035
    Supportive Therapy 1035
    Adjunctive Treatment 1035
    Monitoring and Prognosis 1035
    References 1035
    145 Screening of the Asymptomatic Long-term Traveler 1037
    Introduction 1037
    How does a Clinician Evaluate an Asymptomatic Long-Term Traveler on Return? 1037
    History 1037
    Examination 1038
    General Screening Tests 1038
    Targeted Disease Evaluation 1039
    Eosinophilia 1039
    Schistosomiasis 1039
    Sexual Health and HIV Screening 1039
    Trypanosomiasis 1040
    Tuberculosis 1040
    Rabies PEP 1040
    Malaria 1040
    Psychological Health 1040
    Conclusions 1040
    References 1040
    146 Persistent Diarrhea in the Returned Traveler 1041
    Introduction 1041
    Etiology 1041
    Assessment 1042
    Investigations (Table 146-2) 1042
    Management 1043
    References 1043
    147 Skin Lesions in Returning Travelers 1044
    Introduction 1044
    Approach to a Traveler with a Skin Lesion 1044
    Localized Skin Diseases 1044
    Skin and Soft Tissue Infection 1044
    Creeping Dermatitis 1044
    Cutaneous Ulcer 1045
    Fixed Localized Papules and Nodules 1045
    Fixed and Localized Pruritic Eruption 1048
    Arthropod-Related Dermatitis 1048
    Contact Dermatitis 1048
    Dermatophytosis 1048
    Other Localized Dermatologic Syndromes 1048
    Disseminated Skin Diseases 1048
    Febrile Exanthem 1048
    Urticaria 1048
    Disseminated Pruritus with or Without Rash 1049
    References 1049
    148 Eosinophilia in Migrants and Returned Travelers: 1050
    Introduction 1050
    General Principles 1050
    History and Physical Examination 1050
    Laboratory Investigations 1050
    Direct Microscopy 1050
    Serology 1050
    Management 1051
    Follow-Up Issues 1051
    Clinical Syndromes 1051
    Asymptomatic Eosinophilia 1051
    Fever and/or Respiratory Symptoms 1051
    Katayama Syndrome 1051
    Loeffler’s Syndrome 1051
    Gastrointestinal/Genitourinary Symptoms 1051
    Strongyloidiasis 1051
    Soil-Transmitted Helminths (Geohelminths) 1055
    Schistosomiasis/Bilharzia: Schistosoma mansoni, S. japonicum and S. haematobium 1055
    Hydatid 1055
    Liver Flukes 1055
    Neurological Symptoms 1055
    Dermatologic Presentations 1055
    Filariasis: Onchocerciasis, Lymphatic Filariasis and Loa loa 1055
    References 1056
    149 Immigrant Medicine 1057
    Introduction 1057
    Pre-Departure and Post-Arrival Health Assessment 1057
    Infectious Diseases of Immigrants 1058
    Febrile Illnesses 1058
    Pulmonary 1058
    Gastrointestinal 1058
    Neurologic and Ophthalmologic 1059
    Cardiac 1059
    Genitourinary 1059
    Dermatologic 1059
    Noninfectious Diseases of Immigrants 1060
    Conclusion 1060
    References 1060
    150 International Adoption 1061
    Introduction 1061
    Tuberculosis 1061
    Hepatitis A 1062
    Hepatitis B 1062
    Hepatitis C 1062
    Syphilis 1062
    HIV 1062
    Intestinal Pathogens 1062
    Eosinophilia 1062
    Immunizations 1062
    Conclusions 1062
    References 1064
    151 Medical Tourism 1066
    Introduction 1066
    What Services Are Available via Medical Tourism? 1066
    How Many Medical Tourists Are There and Where Do They Come From? 1066
    Where Are Medical Tourism Services Provided? 1067
    Infection-Related Risks 1067
    Quality Control, Safety, and Risk 1067
    The Returned Medical Tourist 1067
    Conclusion 1068
    References 1068
    152 Transplant Patients and Tropical Diseases 1069
    Introduction 1069
    Transplant Tourism 1069
    Degrees of Immunosuppression 1069
    Immunosuppression and Tropical Diseases 1070
    Disease Distribution in Returning Travelers 1070
    Malaria 1071
    Malaria in Stem Cell and Solid Organ Transplant Recipients 1071
    Leishmaniasis in Stem Cell and Solid Organ Transplant Recipients 1071
    Chagas Disease (American Trypanosomiasis) in Stem Cell and Solid Organ Transplant Recipients 1071
    Strongyloidiasis in Stem Cell and Solid Organ Transplant Recipients 1072
    Campylobacter Infections in Stem Cell and Solid Organ Transplant Recipients 1072
    References 1073
    153 Delusional Parasitosis 1074
    Introduction 1074
    Epidemiology 1074
    Natural History, Pathogenesis, and Pathology 1074
    Classification of Delusional Parasitosis 1075
    Primary Delusional Parasitosis 1075
    Secondary Delusional Parasitosis Associated with Underlying Psychiatric Disease 1075
    Secondary Delusional Parasitosis Associated with Underlying Medical Conditions 1075
    Clinical Features 1075
    Patient Evaluation, Diagnosis, and Differential Diagnosis 1076
    Psychiatric Assessment 1076
    Treatment 1076
    First-Generation Antipsychotic Agents 1077
    Second-Generation Antipsychotic (SGA) Agents 1077
    Outcome and Prognosis 1077
    References 1077
    11 Laboratory Diagnosis of Parasitic 1079
    154 General Principles 1080
    154.1 Preparation of Samples for Morphologic Diagnosis of Parasites in Stool and Urine Specimens 1080
    Physical Characteristics of the Specimen 1080
    Techniques of Stool Examination 1080
    Direct Wet Film 1080
    Modified D’Antoni Iodine Solution 1081
    Permanent Staining of Fixed Specimens 1081
    Concentration Methods 1081
    Examination of Urine and Vaginal Secretions 1081
    Special Detection Methods 1081
    Agar Plate Culture for Strongyloides Larvae [3] 1081
    Cellophane Tape Swab for Enterobius and Taenia Eggs 1081
    Duodenal Sampling and Biopsy 1081
    Methods for Estimation of Worm Burden 1081
    Kato-Katz Thick-Smear Technique 1081
    Special Methods for Intestinal Helminths 1081
    Platyhelminths 1081
    Nematodes 1081
    References 1081
    154.2 Examination of Blood, Other Body Fluids, Tissues, and Sputum 1082
    Examination of Fresh Blood 1082
    The Thin Film 1082
    Thick Blood Films 1082
    Estimating Numbers of Malaria Parasites in Blood 1082
    Blood Concentration Procedures 1082
    Quantitative Buffy Coat 1082
    Rapid Diagnostic Tests for Malaria 1082
    Examination of Cerebrospinal Fluid 1082
    Tissue Impressions 1082
    Biopsy and Aspiration 1082
    Examination of Sputum 1083
    Rapid Methenamine Silver Stain for Pneumocystis jirovecii 1083
    Culture Methods 1083
    Other Culture Methods 1083
    Animal Inoculation 1083
    References 1083
    12 Drugs Used in Tropical Medicine 1085
    Mebendazole 1086
    Description 1086
    Available Products 1086
    Indications 1086
    Mode of Action 1086
    Pharmacokinetics 1086
    Dose Adjustments in Renal Failure 1086
    Dose Adjustments in Liver Failure 1086
    Dose 1086
    Route of Administration 1086
    Adverse Events and Serious Adverse Events 1086
    Key Drug Interactions 1086
    Contraindications 1087
    Use in Special Populations 1087
    Pregnancy 1087
    Lactation 1087
    Pediatrics 1087
    Elderly (Age > 60 Years) 1087
    Resistance 1087
    Storage 1087
    Further Reading 1087
    Albendazole 1088
    Description 1088
    Available Products 1088
    Indications 1088
    Mode of Action 1088
    Pharmacokinetics 1088
    Dose Adjustments in Renal Failure 1088
    Dose Adjustments in Liver Failure 1088
    Dose 1088
    Route of Administration 1089
    Adverse Events and Serious Adverse Events 1089
    Key Drug Interactions 1089
    Contraindications 1089
    Use in Special Populations 1089
    Pregnancy 1089
    Lactation 1089
    Pediatrics 1089
    Elderly (Age >60 Years) 1089
    Resistance 1089
    Storage 1089
    Further Reading 1089
    Anti-Tuberculosis Drugs 1090
    Diethylcarbamazine (DEC) 1098
    Description 1098
    Available Products 1098
    Indications 1098
    Mode of Action 1098
    Pharmacokinetics 1098
    Dose Adjustments in Renal Failure 1098
    Dose Adjustments in Liver Failure 1098
    Dose 1098
    Route of Administration 1098
    How to Give the Drug 1098
    Adverse Events and Serious Adverse Events 1098
    Due to the Drug Itself 1098
    Due to the Effect on the Parasite 1098
    Key Drug Interactions 1099
    Contraindications 1099
    Use in Special Populations 1099
    Pregnancy 1099
    Lactation 1099
    Pediatrics 1099
    Elderly (Age > 60) 1099
    Resistance 1099
    Storage 1099
    Availability in the USA 1099
    Comments on Use 1099
    References 1099
    Ivermectin 1100
    Description 1100
    Available Product 1100
    Indications 1100
    Mode of Action 1100
    Pharmacokinetics 1100
    Dose Adjustments in Renal Failure 1100
    Dose Adjustments in Liver Failure 1100
    Dose 1100
    Route of Administration 1100
    How to Give the Drug 1100
    Adverse Events and Serious Adverse Events 1100
    Key Drug Interactions 1100
    Contraindications 1101
    Use in Special Populations 1101
    Pregnancy 1101
    Lactation 1101
    Pediatrics 1101
    Elderly (Age > 60) 1101
    Resistance 1101
    Storage 1101
    Availability in the USA 1101
    Comments on Use 1101
    References 1101
    Pentavalent Antimony 1102
    Description 1102
    Available Products 1102
    Indications 1102
    Mode of Action 1102
    Pharmacokinetics 1102
    Dose Adjustments in Renal Failure 1102
    Dose Adjustments in Liver Failure 1102
    Dose 1102
    Route of Administration 1102
    How to Give the Drug 1102
    Adverse Events and Serious Adverse Events 1102
    Key Drug Interactions 1103
    Contraindications 1103
    Use in Special Populations 1103
    Pregnancy 1103
    Lactation 1103
    Pediatrics 1103
    Elderly (Age >60 Years) 1103
    Resistance 1103
    Storage 1103
    Product Insert 1103
    Availability in the USA 1103
    Comments on Use 1103
    References 1103
    Pentamidine 1104
    Description 1104
    Available Products 1104
    Indications 1104
    Mode of Action 1104
    Pharmacokinetics 1104
    DOse Adjustments in Renal Failure 1104
    Dose Adjustments in Liver Failure 1104
    Dose 1104
    Injectable 1104
    Inhaled 1104
    Route of Administration 1104
    How to Give the Drug 1104
    Adverse Events and Serious Adverse Events 1104
    Key Drug Interactions 1105
    Contraindications 1105
    Use in Special Populations 1105
    Pregnancy 1105
    Lactation 1105
    Pediatrics 1105
    Elderly (Age >60 Years) 1105
    Resistance 1105
    Storage 1105
    Availability in the USA 1105
    Comments on Use 1105
    Further Reading 1105
    Nitazoxanide 1106
    Description 1106
    Available Products 1106
    Indications 1106
    Mode of Action 1106
    Pharmacokinetics 1106
    Dose Adjustments in Renal Failure 1106
    Dose Adjustments in Liver Failure 1106
    Dose 1106
    Route of Administration 1106
    How to Give the Drug 1106
    Adverse Events and Serious Adverse Events 1106
    Key Drug Interactions 1106
    Contraindications 1106
    Use in Special Populations 1106
    Pregnancy 1106
    Lactation 1107
    Pediatrics 1107
    Elderly (Age >60 Years) 1107
    Resistance 1107
    Storage 1107
    Availability in the USA 1107
    Comments on Use 1107
    Further Reading 1107
    Dapsone 1108
    Description 1108
    Available Products 1108
    Indications 1108
    Mode of Action 1108
    Pharmacokinetics 1108
    Dose Adjustments in Renal Failure 1108
    Dose Adjustments in Liver Failure 1108
    Dose 1108
    Route of Administration 1108
    How to Give the Drug 1108
    Adverse Events and Serious Adverse Events 1108
    Key Drug Interactions 1109
    Contraindications 1109
    Use in Special Populations 1109
    Pregnancy 1109
    Lactation 1109
    Pediatrics 1109
    Elderly (Age > 60) 1109
    Resistance 1109
    Storage 1109
    Availability in the USA 1109
    Comments on Use 1109
    Further Reading 1109
    Subject Index 1111
    A 1111
    B 1118
    C 1121
    D 1129
    E 1132
    F 1136
    G 1138
    H 1140
    I 1146
    J 1149
    K 1149
    L 1150
    M 1153
    N 1159
    O 1161
    P 1163
    Q 1170
    R 1170
    S 1173
    T 1180
    U 1186
    V 1186
    W 1188
    X 1189
    Y 1190
    Z 1190