Amid increasing number of coronavirus cases in Maharashtra, new curbs have been put in place in the state, with Mumbai hiring marshals to enforce mask-wearing. A number of the state's political leaders and ministers have also said they have tested positive for COVID-19. As several cases of coronavirus mutation have been observed in Maharashtra, experts say they are yet to observe behaviour - including how fast or slow it infects people -- and pointed out that it is "too early to call it a strain".