Certificate in Travel Health (CTH) Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
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1. What is the primary purpose of travel medicine?
A. Treat chronic diseases in travelers
B. Provide emergency surgery abroad
C. Prevent illness and injury in travelers
D. Replace primary healthcare services
Answer: C. Prevent illness and injury in travelers
Rationale: Travel medicine focuses on risk assessment, vaccination,
prophylaxis, and education to prevent health issues before, during,
and after travel.
2. Which vaccine is commonly recommended for travelers to sub-
Saharan Africa?
,A. HPV
B. Yellow fever
C. Influenza only
D. Varicella
Answer: B. Yellow fever
Rationale: Yellow fever vaccination is required or recommended for
many countries in sub-Saharan Africa due to endemic transmission
risk.
3. The incubation period refers to:
A. Time from recovery to relapse
B. Time from exposure to symptom onset
C. Time from diagnosis to treatment
D. Time from vaccination to immunity loss
Answer: B. Time from exposure to symptom onset
Rationale: Incubation period is the time between pathogen exposure
and the appearance of clinical symptoms.
4. Which traveler is at highest risk for severe altitude sickness?
A. Young athlete
,B. Person ascending gradually
C. Person ascending rapidly to high altitude
D. Person staying below sea level
Answer: C. Person ascending rapidly to high altitude
Rationale: Rapid ascent does not allow physiological adaptation,
increasing risk of acute mountain sickness.
5. Malaria is transmitted primarily by:
A. Contaminated water
B. Anopheles mosquito bite
C. Airborne droplets
D. Human contact
Answer: B. Anopheles mosquito bite
Rationale: Malaria parasites are transmitted through the bite of
infected female Anopheles mosquitoes.
6. The most effective way to prevent malaria in travelers is:
A. Wearing bright clothing
B. Chemoprophylaxis and mosquito avoidance
, C. Drinking bottled water
D. Antibiotic prophylaxis
Answer: B. Chemoprophylaxis and mosquito avoidance
Rationale: Combined use of antimalarial drugs and bite prevention is
the most effective strategy.
7. Which disease is associated with contaminated food and water?
A. Dengue
B. Typhoid fever
C. Influenza
D. Rabies
Answer: B. Typhoid fever
Rationale: Typhoid is transmitted via fecal-oral route through
contaminated food or water.
8. A key symptom of traveler’s diarrhea is:
A. Constipation
B. Acute watery diarrhea
C. Joint swelling
D. Skin rash
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of travel medicine?
A. Treat chronic diseases in travelers
B. Provide emergency surgery abroad
C. Prevent illness and injury in travelers
D. Replace primary healthcare services
Answer: C. Prevent illness and injury in travelers
Rationale: Travel medicine focuses on risk assessment, vaccination,
prophylaxis, and education to prevent health issues before, during,
and after travel.
2. Which vaccine is commonly recommended for travelers to sub-
Saharan Africa?
,A. HPV
B. Yellow fever
C. Influenza only
D. Varicella
Answer: B. Yellow fever
Rationale: Yellow fever vaccination is required or recommended for
many countries in sub-Saharan Africa due to endemic transmission
risk.
3. The incubation period refers to:
A. Time from recovery to relapse
B. Time from exposure to symptom onset
C. Time from diagnosis to treatment
D. Time from vaccination to immunity loss
Answer: B. Time from exposure to symptom onset
Rationale: Incubation period is the time between pathogen exposure
and the appearance of clinical symptoms.
4. Which traveler is at highest risk for severe altitude sickness?
A. Young athlete
,B. Person ascending gradually
C. Person ascending rapidly to high altitude
D. Person staying below sea level
Answer: C. Person ascending rapidly to high altitude
Rationale: Rapid ascent does not allow physiological adaptation,
increasing risk of acute mountain sickness.
5. Malaria is transmitted primarily by:
A. Contaminated water
B. Anopheles mosquito bite
C. Airborne droplets
D. Human contact
Answer: B. Anopheles mosquito bite
Rationale: Malaria parasites are transmitted through the bite of
infected female Anopheles mosquitoes.
6. The most effective way to prevent malaria in travelers is:
A. Wearing bright clothing
B. Chemoprophylaxis and mosquito avoidance
, C. Drinking bottled water
D. Antibiotic prophylaxis
Answer: B. Chemoprophylaxis and mosquito avoidance
Rationale: Combined use of antimalarial drugs and bite prevention is
the most effective strategy.
7. Which disease is associated with contaminated food and water?
A. Dengue
B. Typhoid fever
C. Influenza
D. Rabies
Answer: B. Typhoid fever
Rationale: Typhoid is transmitted via fecal-oral route through
contaminated food or water.
8. A key symptom of traveler’s diarrhea is:
A. Constipation
B. Acute watery diarrhea
C. Joint swelling
D. Skin rash
