The more contagious Delta variant of Covid-19 now makes up 83% of sequenced samples in the United States, US Centers for Disease Control and Prevention Director Dr. Rochelle Walensky said Tuesday.

LAS VEGAS, NEVADA -- A California couple says they were fully vaccinated, but still contracted COVID-19 while on vacation as experts say breakthrough cases are possible, especially with the delta ...

MILWAUKEE, Wis. (CBS 58) - Wisconsin has seen a slight uptick in COVID cases since late June. On Friday, state officials said the unvaccinated population is at most risk, and the Delta variant will ...

Differing strains of the coronavirus continue to appear around the world and a new COVID-19 variant, the so-called "Delta" variant, has health experts concerned. The variant, otherwise known as B.1617 ...

MARSHALLTOWN, Iowa -- As COVID cases continue to surge across the U.S. due to the Delta variant, an Iowa doctor took to social media to urge vaccinations. He started off by saying, "I feel like I ...

NEW YORK (WABC) -- New York City's latest COVID positivity rate is still low at 1.17 percent. Marriage bureaus in the city are opening on Monday for in-person weddings. However, there was a warning on ...

The delta variant is becoming the dominant coronavirus strain in the U.S. and many schools are taking the increase into account when planning for a safe opening in the fall. “The delta variation is ...

The highly infectious Delta variant of COVID-19 has made up more than 80% of California samples sequenced for July, the same proportion top U.S. health officials have recently cited as the national ...

COLUMBUS, Ohio (WCMH) – By two metrics, Ohio’s COVID-19 cases are at their highest point of the summer so far. The Ohio Department of Health on Monday reported 660 new coronavirus cases, the highest ...