Lena H. Sun

Author's posts

U.S. plans to shift to annual coronavirus shots, similar to flu vaccine

White House says omicron-targeting boosters mark turning point in pandemic.

CDC recommends reformulated coronavirus booster shot for fall

The new shot targets the highly contagious omicron variant.

CDC, under fire, lays out plan to become more nimble and accountable

‘In our big moment, our performance did not reliably meet expectations,’ Walensky acknowledges.

CDC loosens coronavirus guidance, signaling strategic shift

The recommendations signal the Biden administration has decided the lower covid fatality rate in a heavily vaccinated nation allows less demanding guidelines.

Biden covid case highlights confusing CDC guidance on ending isolation

With the extremely contagious BA.5 variant spreading, and research showing people are often infectious for more than five days, CDC guidance has drawn criticism from some infectious-disease experts.

When you have covid, here’s how you know you are no longer contagious

It’s complicated. But it’s good to know because there’s an upswing in covid-19 cases in many parts of the United States.

First cases of monkeypox in children in U.S. confirmed

The two young children, believed to have gotten infected through household transmission, ‘are doing well,’ CDC director says.

Unvaccinated Rockland County, N.Y. man diagnosed with polio

First U.S. case of polio in nearly a decade confirmed in unvaccinated 20-year-old in New York state, who traveled abroad this year.

Nearly 800,000 doses of monkeypox vaccine may be in U.S. by end of July

The Food and Drug Administration says it has finished inspecting a Danish vaccine plant that makes the sought-after shot.

Biden officials urge use of booster shots, antivirals against BA.5

‘The tools we have continue to work’ against new variants, says White House coordinator.