This year, the wild west has a new type of scofflaw to wrangle: the Covid-19 kind.

A big question among parents and teachers as more schools reopen is when their kids will be vaccinated against COVID-19. Some have wondered whether the vaccine is even necessary for children. Here...

Should you get the vaccine if you've already had Covid? Here's what an expert said.

Early this morning, Pfizer announced results from a phase III trial showing positive results for young participants.

A new study conducted by the CDC offers strong results for mRNA vaccines.

A Senate committee grilled federal officials about the shortage of vaccines to protect Americans against a pandemic virus. Two months later, the U.S. public had lost interest in the virus, and...

Six months after it was controversially hailed by Trump administration officials as a “breakthrough” therapy to fight the worst effects of covid-19, convalescent plasma appears to be on the ropes.

AstraZeneca released two sets of phase III safety trial results for its Covid-19 vaccine, each showing slightly different efficacy rates. The inconsistency has kicked up controversy and confusion,...

With the president's announcement that he wants 200 million people vaccinated by the end of April, the rise of the variants, especially the British version, is also raising concerns.

Physical stress can cause a variety of problems, from body pain and tension to hair loss and delayed periods.

Now that the coronavirus has been in the United States for roughly a year, new numbers are revealing the scale of Covid-19’s impact on American health.

By using a sewage-handling robot, this laboratory has been able to detect coronavirus in wastewater 30 times faster than nonautomated large-scale systems.