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Coronavirus

Why and how face masks are effective in limiting Covid spread

"For the airborne transmission of SARS-CoV-2, we find that usually just a minor fraction of exhaled respiratory particles contains viruses. Most environments and contacts are under virus-limited conditions, wear face masks, including simple surgical masks, have a high efficacy in preventing the spread of Covid-19."

India’s art fraternity raises Rs 2 cr for Covid relief

The sale was led by an untitled work by Amrita Sher-Gil, which sold for Rs 15.88 lakhs, nearly doubling its lower estimate. Other highlights include a 2015 oil on canvas by A Ramachandran, which sold for Rs 7.32 lakhs, and Nilima Sheikh's Wakeful Night 4, 2021, which sold for Rs 7.26 lakhs.