Understand how proper ventilation helps people to fight against Covid

Watch this report to know how a proper ventilation system in houses has helped people in India to fight against the coronavirus crisis in the initials days.<br />When the virus started spreading, it created havoc in the foreign countries but the cases in India were controlled.<br />Have a look

source https://news.abplive.com/tv-show/namaste-bharat/understand-how-proper-ventilation-helps-people-to-fight-against-covid-1323707