Testing Remains A Challenge In Karnataka Amid A Second Covid Wave Testing Remains A Challenge In Karnataka Amid A Second Covid Wave Over 21 million tests have been done in Karnataka since the beginning of the pandemic -- including more than 17 million RT-PCR tests -- so the scale is enormous. Karnataka government says only communication on negative reports are delayed. Karnataka, in the grip of a second wave of Coronavirus, has started ramping up its vaccination process. But one challenging area remains testing, which is a crucial element in the battle against Covid 19. With the number of tests conducted each day increasing, the system faces a huge challenge when it comes to analysing and reporting the samples.