As the fourth Covid wave is predicted to hit India in June, a virologist on March 19 said that there is no scientific, epidemiological, virological reason to predict the wave and even the probability is extremely low. Speaking to ANI, Dr T Jacob John, Virologist and former professor of CMC Vellore said, "There is no scientific, epidemiological, virological reason to predict a fourth Covid wave, but nobody can predict that it will not happen. We can say the probability is extremely low but we've to be vigilant."