Guwahati: With an increase in the number of false-negative results in antigen tests turning out to be positive for COVID-19 in RT-PCR testing, heavily infected states like Maharashtra and Tamil Nadu are growing suspicious and starting to rely exclusively on RT-PCR.
According to reports, two laboratories in Maharashtra found more than half of the symptomatic COVID-19 patients, who tested negative in rapid antigen test, to be positive during their RT-PCR test.
Of the tests conducted by Brihanmumbai Municipal Corporation in July, those who had tested negative were tested again and almost 65% of them turned out to be coronavirus positive later.
Though it is mandated by the Uunion health and family welfare ministry to retest all rapid antigen negative results on RT-PCR, but the huge number of false negative is cause for a concern.
As such, Tamil Nadu which tests nearly 50,000 people every day, relies only on RT-PCR tests.
Tamil Nadu’s health secretary J Radhakrishnan said that the state has adequate supply of RT-PCR kits and facilities to run the tests.