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#CovidToday for #Delhi
Delhi has 3x its testing capacity from 6000 to 18000 tests per day. đź‘Ź However, most of this increase comes from the new rapid antigen tests, which have much lower sensitivity. This has important implications.
A thread analyzing Delhi’s testing..
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Delhi has 3x its testing capacity from 6000 to 18000 tests per day. đź‘Ź However, most of this increase comes from the new rapid antigen tests, which have much lower sensitivity. This has important implications.
A thread analyzing Delhi’s testing..
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The rapid ag test has a sensitivity of 50-84% (image, ICMR). Even if we assume it to be 70%, and considering this sens is calculated by comparing to RTPCR, it is 30% lower than the earlier done 6000 PCR/day.
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As in first chart, positivity rate has declined. However this decline would be partly because the new 12000 rapid ag tests are not simply not as good at picking up positives as the RTPCR.
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