We need to talk about "mild Covid" — and why it sucks

Early in the pandemic, doctors defined mild, moderate, and severe Covid. Two and a half years later, do they still make sense?

Bloody hell

First study of its kind reports on period changes post-Covid-19 vaccination

42 percent of respondents to a survey had wonky periods after a jab.


BA.5 Covid-19 infections: What it means for the pandemic and booster shots

The new subvariant is responsible for a massive wave of infections.


FDA just authorized Covid-19 vaccines for kids under 5. Here’s what parents need to know

The Biden Administration signaled it would like to have vaccines available for this group as soon as June 21.

Mind and Body

Nasal vaccines could be key to finally defeating Covid-19 — here’s why

A doctor answers five crucial questions about the vaccine technology.

Mind and Body

More than half of Americans have had Covid-19 — here's how to tell if you are one of them

The CDC says 60 percent of people in the U.S. have contracted Covid-19 since the pandemic began.

Risk Factors

Psychiatric conditions make breakthrough Covid-19 cases more likely

Researchers are finally understanding the connection between psychiatric conditions and the immune system.


Do I need a second Covid-19 booster?

Booster shots offer protection against Covid-19. But do you really need two?

Mind and Body

Mask recommendations are constantly in flux — here's the last mask guide you'll ever need

Few mitigation measures have inflamed tensions more than masks and mask mandates.

Mind and Body

Covid-19 is here to stay. Should you still try to avoid it?

Avoiding infection is still worthwhile.

Mind and Body

Can Evusheld treat Covid-19? An infectious disease expert answers 7 key questions

The U.S. Food and Drug Administration granted emergency use authorization to AstraZeneca’s Covid-19 antibody-drug Evusheld on Dec. 8, 2021.


BA.2 is quickly becoming the dominant Covid-19 variant in the U.S. Should we be worried?

Everything you need to know about this Omicron subvariant.

Some good news

You don’t need an Omicron-specific Covid-19 booster — here’s why

Get your booster.


Vaccines for cancer are already here — and you can get them

Get your shots.

Blue Death

Covid-19 could become the next cholera if we ignore this one deadly lesson

The cholera of today can teach us about the Covid-19 of tomorrow.

Quantumania, indeed

Ant-Man 3: Why Marvel is stuck with anti-vaxxer Evangeline Lilly

It’s a bad look for a superhero scientist to oppose vaccine mandates.