Epidemiology & Prevention USMLE Step 1 Practice Question
A tropical region in Southeast Asia has consistently reported 15 to 20 malaria cases per 100,000 people annually for the past 8 years with minimal year-to-year variation. Serologic testing confirms Plasmodium falciparum in 85% of cases. Bed net distribution programs have been implemented without altering the disease incidence rate. Public health officials characterize this epidemiologic pattern of sustained, relatively stable disease transmission as which of the following?
Answer choices
- AEndemic diseaseCorrect answer
- BEpidemic disease
- CPandemic disease
- DPoint-source outbreak
- EAttack rate
- FSporadic disease
See the full explanation
Get the correct-answer rationale, why each distractor is wrong, the underlying mechanism, and high-yield associations — plus adaptive practice that targets your weak areas — with a free MedBoardPRO account.