Being infected with COVID-19 may temporarily provide protection against reinfection. However, it's unknown how long that protection lasts and how valuable it is against different variants of the virus ...

Six years after the start of the COVID-19 pandemic, the virus still exists. A public health expert explains what Long COVID ...

Facing yet another COVID-19 variant, this one said to be faster and stealthier than those before it, health officials say the calculus has changed and are urging booster shots even more strongly to ...

HOUSTON, Texas (KTRK) -- Two new studies show that people who have recovered from COVID-19 could have long-lasting immunity even after antibodies fade. Now, two local infectious disease experts are ...

A newer COVID variant called XFG is currently fueling cases of the virus across the country. Nicknamed “Stratus,” this variant first took hold over the summer and now makes up nearly 70% of COVID-19 ...

LOS ANGELES (KABC) -- With so many staying home during the coronavirus crisis, there are concerns about staying healthy. People are moving less, not working out in gyms and may not be keeping up with ...

Questions about the COVID-19 shot abound as federal recommendations shift and medical groups issue clashing guidance.

Some people are worried that another Covid surge is coming, powered by omicron's highly contagious BA.2 subvariant. But experts say a significant jump in cases is unlikely, at least for now — possibly ...

Add Yahoo as a preferred source to see more of our stories on Google. What are the most common COVID-19 symptoms doctors are seeing in October 2025? Read on to find out what to look out for, how to ...