Variant Hunters Race to Find New Strains Where Testing Lags
In countries without much sequencing, new versions of the Covid virus can go unnoticed. Scientists across Africa are collaborating to track them down. ..
In countries without much sequencing, new versions of the Covid virus can go unnoticed. Scientists across Africa are collaborating to track them down. ..
Bats likely gave it to a mystery animal that then gave it to people. We passed it on to minks. Where does it go from there—and could it come back to us? ..
The 2019–20 flu season basically didn’t happen. Same for a couple other respiratory viruses. But that could make future seasons worse. ..
Now that authorized versions are available, it’s tough to recruit volunteers for trials that might give them a placebo. But there are other options. ..
Eliminating Covid globally means navigating a minefield of competition, limited supply, and suspicion that some vaccines aren’t as good. ..