Bengaluru is surging in corona cases day by day. Even as the daily development of COVID-19 cases in Bengaluru has remained to be among the greatest in the country for the past month, the positivity rate and the mortality rate has diminished in the same period. While as on September 16, the positivity rate was 13.95%, the same as on October 16 is 12.77%. Furthermore, the fatality rate which was at 1.39% on September 16, is at 1.15% as of October 16.
Positivity rate is the number of patients testing positive for every 100 tests while the mortality rate is the number of deaths per 100 positive patients. Authorities state that the increase in daily caseload can be described as a result of more testing in Bengaluru and specifically RT-PCR testing. They say that accurate and early detection of cases is the only way to arrest the growth of the infection and prevent deaths. This is because rapid antigen tests have proved to be tricky giving a high number of false negatives. While antigen tests are inexpensive and less time consuming, they have lesser reliability.
They stress that rather than concentrating on caseload in isolation, the positivity rate and case fatality rate should be looked at as well. Over the last 10 days, Bengaluru has recorded 46,293 cases averaging 4,629 cases daily. This after the city conducted 4,62,527 tests in the same period, averaging 46,252 tests daily. Chennai at the same time has been doing only 13,000 tests daily while Mumbai has fallen below 10,000.