Cyclical trend of occurrence of disease is shown by all except
Correct Answer: Polio
Description: Cyclical trend is occurance of disease in cyclical pattern
Eg :
Measles : every 2-3 years.
Rubella : every 6-9 years.
Influenza : every 10-15 years (pandemic).
Polio cases occurance is considered as epidemic / short term fluctuation.
Category:
Social & Preventive Medicine
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