“Laboratories in Kolkata and surrounding areas are reporting a positivity rate of 45%-55% while in other parts of the state the positivity rate is around 24%, up from 5% at the beginning of this month,” mentioned a health care provider hooked up to at least one of the most important laboratories conducting RT-PCR assessments in the state.
This, a senior physician at a state-run hospital mentioned, is solely the tip of the iceberg. “The actual positivity rate will be much higher. There would be so many asymptomatic or mildly symptomatic patients who are not getting themselves tested. We are not testing enough. We must not be deterred from testing more as this is one major tool to contain this wave,” he mentioned.
Of the 25,766 samples tested in the state on April 1, only one,274 samples have been positive, a positivity of 4.9%. On Saturday, 55,060 samples have been tested throughout the state and 25.9% samples or 14,281 individuals have been positive.
“One reason is the high transmissibility of the mutant virus which is infecting a large number of people in a short span of time. In most cases, entire families are getting infected. Another reason for the high positivity is that only those who are symptomatic are going in for the tests,” mentioned Bhaskar Narayan Chaudhuri, microbiologist at Peerless Hospital.
“The positivity rate has shot up to 50% in our lab. The pressure to test samples is tremendous. But it is good that people are going for the test. How fast we detect and isolate has an impact both on treatment and mortality,” mentioned nuclear heart specialist Alok Roy, chairman of Medica Group of Hospitals.
“In our lab, the positivity currently is about 55%,” mentioned a NICED Kolkata official.
Every main lab in town began seeing a pointy rise in positive samples in April with the speed going previous 20% by the second week, and there was no stopping after that. “Even during the post-Durga Puja surge last year we would find about 30% samples positive. This time it has crossed the previous year’s record,” mentioned Chaudhuri.
Sources in the well being division mentioned whereas Kolkata, North and South 24 Parganas and Howrah have excessive positivity, the speed is going up in districts like Burdwan, Malda and Murshidabad as properly.
“The infectivity rate and Covid numbers could be quite high in districts but to know the actual scene the number of tests needs to be scaled up there,” the NICED official mentioned.
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