Why are coronavirus cases falling in India SECTIONS Last Updated: Feb 05, 2021, 11:32 PM IST Share Synopsis The drop in coronavirus numbers assumes significance as several countries across the world are experiencing a second and in some cases even third wave of Covid-19 virus. PTI Indians are exposed to several diseases such as malaria, dengue fever, typhoid, hepatitis, cholera. Some experts speculate that exposure to these diseases in the past may have increased the immunity of the general population. (This story originally appeared in on Feb 05, 2021)NEW DELHI: On September 16 last year, India reported a record 97,894 coronavirus cases. Nearly four-and-half months later, on February 2, the country registered 8,635 new cases.