Lena H. Sun

Author's posts

After three years of covering covid, I built my own air filter

I am not a handy person and even I can DIY this indoor air filter. See how I made a Corsi-Rosenthal Box.

Slide in measles vaccination rate among kindergartners raises alarm

New data underscores concern that parental resistance to childhood immunizations may fuel a resurgence of the disease in the United States.

The doctor won’t see you now: Covid winters are making long hospital waits the new normal

“I’m so sorry that you’re still in the emergency room,” one doctor told a stroke patient who was waiting for days.

Growing vaccine hesitancy fuels measles, chickenpox resurgence in U.S.

An Ohio measles outbreak among unvaccinated children comes at a time of heightened concern about the public health consequences of anti-vaccine sentiment.

Covid boosters cut hospitalization risk by at least 50%, CDC data show

The Biden administration is renewing a push for Americans to get updated covid boosters in anticipation of a winter tripledemic of covid, flu and RSV.

CDC expands wastewater testing for polio to Michigan and Pennsylvania

The expansion of wastewater monitoring for polio comes amid pressure to increase efforts to fight the disease after the first U.S. polio case in nearly a decade was discovered in July.

So far, this flu season is more severe than it has been in 13 years

The flu has hospitalized a record number of people this season, underscoring the potential for a perilous winter of respiratory viruses with covid-19 and RSV.

Monkeypox can be far more devastating for patients with weak immune systems

At least 10 patients have died in U.S. monkeypox outbreak, even as cases continue to fall.

New CDC guidance: Only high-risk groups should get monkeypox antiviral

Advocates who have called for TPoxx, the only drug available to treat monkeypox, to be more widely available criticized the government’s guidance as too hasty, given ongoing unequal access to vaccination and treatment.

Community spread of polio prompts CDC wastewater surveillance

Federal officials are stepping up efforts to fight the disease after the first U.S. polio case in nearly a decade was discovered in Rockland County, N.Y.