NEW DELHI: Is there a correlation between Covid-19 tests conducted to positive cases reported by states? Delhi and Gujarat have carried out around 1.25 lakh Covid-19 tests each so far and found more than seven positive cases per 100 tests. Maharashtra with twice as many tests has reported 12% positive cases.
But West Bengal, unlike Delhi, Gujarat and Maharashtra, has carried out far less tests adding up to just 69,500 as of May 15, revealing 2,461 confirmed cases. West Bengal, which has the highest fatality rate of 9% among all states, has reported a lower rate of 3.5% positive cases (for every 100 tests done). West Bengal’s outlier status suggests it needs to conduct more tests and contact tracing.
West Bengal along with Gujarat, MP, Maharashtra and Karnataka are among the top five states with high case-fatality rate. But, unlike Bengal, each of the other four states has a fatality rate less than 5% of total confirmed cases, except Gujarat with 6%, having screened a larger population. Delhi has far lower case-fatality rate of 1.35%, though its recording of deaths has been questioned. There are some states like Karnataka, UP, Andhra, Rajasthan and Tamil Nadu — each having screened anywhere between 1.30 lakh and 3 lakh cases — which have reported around 3% or less positive cases. These states also have far less fatality rate than the top five.
Kerala has managed to keep its fatality rate around 1% of 577 confirmed cases. The answer seems to be in screening asymptomatic people and collecting random samples.
Source : TOI