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LATEST NEWS UPDATES | How pooled testing works, when it helps -Abantika Ghosh

How pooled testing works, when it helps -Abantika Ghosh

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published Published on Apr 20, 2020   modified Modified on Apr 21, 2020

-The Indian Express

Last week, the ICMR brought out an advisory on pooled testing, ideally in districts where incidence of COVID-19 is low.

Faced with criticism about insufficient testing and the reality of limited resources, India has decided go for pooled testing in districts where no cases have been reported. This would on the one hand give data on whether these really are zero-case districts, and on the other, save resources.

* What is pooled testing?

It is a method of testing several samples together with the same technique (RT-PCR) that is being currently used to test individual samples. Samples taken from the nose or throat are pooled together by suspending them in a solution in laid-down proportions. The remaining samples are then labelled and kept separate. Pooled samples are subjected to a test; if it is negative then all samples in the pool are cleared. If it is not, then individual samples are tested to find out which one is positive.

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The Indian Express, 20 April, 2020, https://indianexpress.com/article/explained/coronavirus-infection-how-pooled-testing-works-when-it-helps-6370001/


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