Utility of the secondary attack rate in reducing the caseload of infectious diseases

Author's Name: Saurabh RamBihariLal Shrivastava, Prateek Saurabh Shrivastava and Jegadeesh Ramasamy
Subject Area: Health Science
Subject Other
Section Survey Paper


Secondary attack rate, index case, incubation period.


Worldwide, to reduce the impact of any infectious disease, it is necessary to understand the transmission dynamics of infectious diseases, to ensure timely implementation of cost-effective and evidence-based public health measures. The secondary attack rate (SAR), estimates the probability of disease transmission to an individual who has been exposed to an infectious case. In conclusion, the epidemiological indicator - secondary attack rate – is a sensitive tool for the policy makers to reduce the incidence of new cases of an infectious disease, especially in household settings.

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