Three CDC studies show the benefits of masks and vaccination in reducing kids’ risk of Covid infection, hospitalization, and death

Now that school has been in session for a few months, it’s been possible to learn a bit about what’s working to reduce the likelihood of Covid transmission in schools. …


A summary of the latest Covid-19 research

It’s impossible to keep up with every new study that comes out about Covid-19, but every so often I’ll summarize a few of the recent ones to keep people up to date on the more significant research. …


Repeated studies reveal Covid antibodies in the breastmilk of people who have been vaccinated

More evidence now shows that people who get the Moderna or Pfizer Covid-19 vaccine while breastfeeding produce protective antibodies against the SARS-CoV-2 virus in their breastmilk, which is then passed along to their baby. …


The case highlights the best way to prevent transmission in schools: vaccination, masking, testing, and ventilation

On May 19, an unvaccinated elementary school teacher in Marin County, California, woke up with nasal congestion and fatigue. But figuring the symptoms were just allergies, the teacher went to school anyway. Over the next few days, more symptoms developed: cough, fever, and headache. Still, the teacher kept going to…


Straight talk on third shots

Late last Thursday, the Food and Drug Administration (FDA) formally authorized the use of a third mRNA vaccine booster shot for people who are immune-compromised. …


Findings from a new study don’t bode well for the coming school year, and this research predates the worrisome Delta variant

With the school year starting soon, debates are raging across the country about whether students should wear masks or not. Both the CDC and the American Academy of Pediatrics recommend that all staff and students wear masks, regardless of whether they’re vaccinated or not.

Yet only eight U.S. states are…


The CDC’s partial-reversal on mask-wearing is long overdue, but the damage is done

After weeks of pressure from public health experts and mounting evidence of the risk that vaccinated people can transmit Delta variant Covid-19 infections, the CDC finally reversed course on their mask guidance. …


Fully vaccinated people aren’t likely to get super sick from delta, but they can probably get mildly sick and pass it on to others

The past two weeks have felt confusing, frustrating, and sudden for many people. As Covid-19 infection rates declined more and more throughout the summer, things started to feel a bit more normal-ish for many people.

Some felt like the pandemic was finally ending despite public health experts warning that it…


The hard-to-capture research is in: children’s birthdays were linked to higher infection rates in counties that already had more cases

Epidemiologists regularly warned of the risks of small group gatherings, particularly indoors, during the pandemic before vaccines were available. News stories about superspreader family events popped up now and then, and infectious disease experts warned that these small indoor gatherings were a substantial driver of infections.

But the evidence was…


Only about half of people who have had an organ transplant responded to two doses of the mRNA Covid vaccine, but the numbers went up after a third dose.

One of the most overlooked groups in Covid-related guidelines is organ transplant recipients. …

Tara Haelle

Tara Haelle is a science journalist, public speaker, and author of Vaccination Investigation and The Informed Parent. Follow her at @tarahaelle.

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