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What is the second wave of Covid-19 and why should we be worried?

The disease could come back with a greater bang once the lockdown is lifted, with many of the infected being asymptomatic

Health workers collect swab samples from people for COVID -19 tests, in New Delhi. Photo: PTI
Health workers collect swab samples from people for Covid -19 tests. Photo: PTI

While scientists the world over are trying their best to develop a vaccine and an anti-viral for Covid-19, governments are looking to arrest the rapid decline in the global economy by lifting the lockdown in phases. In such a scenario, in which the number of Covid-19 cases has been rising unabated, and suitable preventive and therapeutic solutions to the pandemic are yet to be discovered, a second wave of the infectious disease could turn out to be a nightmare. First, what is the second wave of Covid-19? By now, you must be aware that pandemics are caused by pathogens ...