कोविड-19 के उभरने में तीन साल से अधिक समय हो गया है, और हजारों लोगों की जान लेने के बावजूद...
Mask
Shireen singh Mask might help to keep people with COVID-19 from unknowingly passing along the virus Body- People are still...
It has been seen that 1% of symptomatic cases die. Expected number of symptomatic cases: Number of deaths x 100...
