The successes and failures of annual flu-shot campaigns hold lessons for the future of COVID vaccines.
Behold choanoflagellates, tiny creatures that can be one body and many bodies all at once.
Experts can’t agree.
It got too cozy with its host.
The world has been so close to eradicating polio for so long—which is exactly why the virus is staging a comeback now.
Welcome to the two-vaccine conundrum.
They can fall from potentially infinite heights and survive. They can pivot off of nothing to land on their feet. Scientists still can’t fully explain why.
Some cats do it, but others can’t—and researchers still don’t fully understand why.
An unnerving flu season in the Southern Hemisphere bodes poorly for those in the north.
New boosters that target Omicron may be our most important COVID vaccines since 2020—but the U.S. may be setting up the new shots to fail.
The administration’s newest vaccine Hail Mary may not be enough to fix the U.S.’s monkeypox immunization problems.
No one seems to think brushing kitty's teeth is worth the hassle.
The insects have infinite backup plans for hunting us down.
The CDC’s latest COVID guidelines are the closest the nation’s leaders have come to saying the coronavirus crisis is done.
Human actions have turned a usually beneficial fungus into a bringer of death.
Will splitting monkeypox vaccines in five work out?
Hunkering down for the winter helps bats cheat death. But doing so comes at a steep cost.
The U.S. has declared (another) public-health emergency. An expert weighs in on whether we might botch this one, too.
It may be getting better at dodging one of the immune system’s main defenses.
Deer almost break their bodies to build antlers each year, and scientists still don’t really know why.
Has COVID taught us nothing?