All are true for Point source epidemic except
Correct Answer: Person-to-person transmission
Description: EPIDEMIC:
• Definitions of epidemic:
– Occurrence of no. of cases of a disease ‘clearly in excess of normal expectancy (NE)’
1. Normal expectancy is derived by looking at average of no. of cases of the disease in previous 3 – 5 years in that geographical area
2. If NE = zero, ‘even one case is considered epidemic’
Category:
Social & Preventive Medicine
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