Umair Irfan
Former correspondent
Latest articles by Umair Irfan
It’s mostly bad, but not all bad.
New Covid-19 infections are undermining some of the gains as countries relax restrictions.
By one estimate, America may need 35 million Covid-19 tests per day for people to return to work.
Why experts say we need clinical trials before using the drug to treat the coronavirus.
We need to find out who has the antibodies to the virus.
The most promising medical solutions to Covid-19 show what’s wrong with our approach to outbreaks.
What happens when America’s medical workers get Covid-19?
Trump wants to use the anti-malaria drug to treat the new coronavirus, but the evidence is lacking.
Kids can spread the virus to more vulnerable adults, and infants may have a higher risk of serious illness than older children.
Biden won. Trump lost. And coronavirus cast a shadow on the first one-on-one Democratic debate.