
Umair Irfan
Former correspondent
Latest articles by Umair Irfan


White House physician Sean Conley wrote that Donald and Melania Trump are now isolating at home.

The emerging field of climate attribution helps explain the wildfires and hurricanes of 2020.


Young children, older adults, and people with preexisting conditions face the highest risks.


The size, speed, and timing of the wildfires, coupled with the Covid-19 pandemic, have created a unique disaster.


The state’s weather is becoming warmer and more volatile due to climate change. And there are more people and buildings.

Air pollution may be the most dangerous element of the massive fires.


The CDC wants hospitals to prepare to deliver a vaccine by November, but vaccine makers are pledging not to rush approval.


The NIH took a shot at the FDA’s case for emergency use authorization for convalescent plasma.


What’s up with all these hurricanes this year?


The storm barreled into Texas and Louisiana during the 15th anniversary of Hurricane Katrina.