Question

case #3: the swimmers itch after swimming at a community pool, several students develop red, itchy patches on their skin. the pools chlorine levels were low that week, and one student had an untreated rash before swimming. 1. is this disease communicable or noncommunicable? 2. what disease might this be? (justify your answer) 3. how could it have been prevented? 4. what public health response would you recommend?

Explanation:

1. Communicable diseases are spread from one person to another. Here, one student had a rash (likely a source of pathogens) and others got affected after swimming (a mode of transmission as pool chlorine was low, not killing pathogens). So it's communicable.
2. Impetigo is a common skin - infection. It causes red, itchy patches. It is contagious. With a student having an untreated rash (could be impetigo) and low chlorine (not disinfecting the pool properly, allowing spread), impetigo is a likely candidate.
3. Treating the student with the rash before swimming (so no pathogen source), maintaining proper chlorine levels (to kill pathogens in the pool water) could have prevented it.
4. Public health response: Isolate the infected student initially, treat all infected students, increase pool chlorine monitoring and maintenance, educate swimmers about skin infections and when not to swim (if they have rashes).

Answer:

1. Communicable.
2. Impetigo; because it causes red, itchy patches, is contagious, and the conditions (infected student, low - chlorine pool) support it.
3. Treat the student with rash before swimming and maintain proper pool chlorine levels.
4. Isolate and treat infected, monitor/maintain pool chlorine, educate swimmers.