Despite early worries, flu patients are not competing with Covid-19 patients for ventilators, and the threat of dueling outbreaks may be waning.
With no coronavirus cure or vaccine, early detection of outbreaks is crucial. This tool could help.
People got sick — and some died — after attending crowded parties and theme parks in Florida as the coronavirus spread.
After this wave of infections, brace yourself for more waves.
We need to recognize any signposts leading up and out.
A company that makes internet-connected thermometers has followed the flu more closely than the C.D.C. can. Now the devices may be turning up cases of Covid-19.