A community health nurse in Trinidad observed an increase in cases of gastroenteritis after heavy flooding in the area. Which of the following is the MOST likely mode of transmission for this outbreak?

Q: How do I try a free CXC Human and Social Biology question?

Just tap any of the four options on this page — no signup, no card, nothing to install. You'll see the correct answer and a full mark-scheme-style explanation within a second. Each visit shows a fresh randomly-picked question from the live CXC CSEC Human and Social Biology bank, so you can keep refreshing to try different ones before deciding whether to create a free account for daily access.

Q: Is Kramizo really free for CXC Human and Social Biology students?

Yes — completely free. Every student gets 45 questions a day on the free plan, across any board and any subject, with no card required and no trial countdown. Kramizo's optional Pro plan removes the daily cap and adds analytics, but the free plan is genuinely free forever. We make money from the small percentage of students who choose to upgrade — not from selling data or ads.

Q: Are the Human and Social Biology questions aligned to the CXC CSEC syllabus?

Every question is written against the published CXC CSEC Human and Social Biology syllabus and reviewed for accuracy before being added to the bank. We match the command words (state, describe, explain, evaluate), mark allocations, and difficulty tier you'll see on real CXC past papers. Explanations are written in the style of official examiner mark schemes so students learn exactly what marks are being awarded for.

Question

A community health nurse in Trinidad observed an increase in cases of gastroenteritis after heavy flooding in the area. Which of the following is the MOST likely mode of transmission for this outbreak?

Accepted Answer

Contaminated water — Award 1 mark for identifying waterborne transmission. After flooding, sewage often contaminates water supplies, leading to faecal-oral transmission of pathogens causing gastroenteritis. A is incorrect — gastroenteritis is not typically airborne. C is incorrect — vectors are not the primary mode for gastroenteritis. D is incorrect — while possible, contaminated water is the most likely cause after flooding.

Answer

Direct contact with infected persons

Answer

Contaminated water

Answer

Vector transmission

Answer

Airborne transmission

One real Human and Social Biology question.No signup. 30 seconds.

One real Human and Social Biology question.
No signup. 30 seconds.