A disease occurs only in a few isolated cases, with no regular pattern in a community. How is this occurrence classified?
Correct answer: A. Sporadic occurrence
- A. Sporadic occurrence
- B. Endemic occurrence
- C. Epidemic occurrence
- D. Pandemic occurrence
Explanation
Sporadic disease occurs infrequently and irregularly, with isolated cases. Endemic disease remains at an expected usual level, while epidemic disease is above the expected level and pandemic disease spreads across countries or continents.
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About Epidemiology and Biostatistics
Epidemiology examines the distribution and causes of disease by person, place and time, using measures such as incidence, prevalence, mortality and case-fatality rates. Biostatistics covers data presentation, sampling, averages, variability, probability and interpretation of study results, while distinguishing association from causation.
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