Health

The US Centers for Disease Control and Prevention should be doing more to guide and encourage improved air circulation in buildings — especially in schools — to help prevent the spread of coronavirus, ventilation experts say. They say the CDC has not paid anywhere near enough attention to the role ventilation can play in helping

Canada expects to receive more than 6.5 million Covid-19 vaccines by the end of March, with tens of millions more vaccines arriving between April and June, Canadian Prime Minister Justin Trudeau said Friday. Canada has secured access to nearly 400 million doses of vaccines, but manufacturers have been slow to ship the authorized medicine. Just

Even with slowed infection rates and increased vaccinations, officials say another devastating Covid-19 spike could be on the horizon depending on what the United States does next. “The question that hangs in the balance right now is, will we have a fourth surge?” Dr. Tom Frieden, the former director of the US Centers for Disease

Just one dose of Pfizer/BioNTech’s coronavirus vaccine can induce a strong enough immune response in people who have already had Covid-19 that it could protect from future disease, according to two new papers published in the journal The Lancet on Thursday. In the United States, the vaccine is authorized as two doses taken 21 days

US Food and Drug Administration vaccine advisers are scheduled to meet Friday to discuss the potential emergency authorization of a third coronavirus vaccine for the US, this one made by Johnson & Johnson’s vaccine arm Janssen Biotech. It’s the next step in a process that could end with the new vaccine’s rollout early next week.

Drugs typically used to treat rheumatoid arthritis can help critically ill Covid-19 patients in intensive care units, one new study finds. But experts warn that more research is needed before doctors start using the drugs more widely, because another new study found that one of those drugs did not help patients hospitalized with Covid-19 pneumonia

After six straight weeks of declines in new Covid-19 cases in the US, that number has started to plateau, even as hospitalizations and deaths continue to drop. The 7-day average of daily new cases was just over 72,000 on Wednesday, according to data from Johns Hopkins University, a total that is relatively unchanged from last

There’s enough to worry about during a pregnancy, even without a pandemic. As the vaccine rollout continues, there’s still concern over its impact on pregnancy. Covid-19 has added an entirely new layer of health anxiety for anyone expecting a child. That’s why one of the biggest questions on many pregnant women’s minds is if the

A new ensemble forecast published Wednesday by the Centers for Disease Control and Prevention suggests the daily Covid-19 death rate will slow in the coming weeks — good news following more than a month of declining case and hospitalization numbers. But now is no time to let up on safety measures — for several reasons

A majority of US adults — nearly six in 10 — say that K-12 schools that are not currently open for in-person learning should wait until all teachers receive the Covid-19 vaccine before they reopen, according to a new survey. Some 59% of adults said schools should wait for teachers to be vaccinated, compared with

Vaccine makers Pfizer and Moderna are trying to get out ahead of some of the new coronavirus variants that are causing concern around the world. Although there’s no evidence people immunized with either vaccine have less protection against the variants, both companies said they have started looking at ways to account for evolving mutations. Especially

Coronavirus infections across the US are still on the way down, and more Americans are getting vaccinated — but variants could cause complications soon. Several experts predicted the highly contagious B.1.1.7 variant first detected in the UK is likely to fuel another surge of cases in just a matter of weeks. “It could result in