This year has been momentous, with a new virus, a new job writing about that virus (114 articles!) and many new sources, readers and Twitter followers. To chronicle this insane year, I'm compiling some of the stories I'm proudest of. A thread.

Exactly a year ago, my family and I were headed back from Vietnam, with no idea how close we had been to the outbreak brewing in China. It took me a while to realize the gravity, but this first story I wrote about the virus still (mostly) holds

In March, it became increasingly obvious from research being published that the virus could spread in the absence of symptoms. Yet US officials were still mostly pooh-poohing it. In this article I talked to scientists who knew

We know now that some of the worst effects of Covid-19 are because of the body's immune response, not just the virus itself. There were just early hints of that when I wrote this piece about cytokine

In this story in May, I delved into what we knew about the relationship between the viral dose and the risk of infection -- a topic we still know woefully little