Delta variant

It’s been called “stealth omicron” or “deltacron.” A new subvariant of the COVID-19 virus is making headlines, so we talked to NBC News medical correspondent Dr. John Torres to learn more. He explained how the variant “plagiarizes” from the Omicron and Delta variants that previously caused surges, and why this may not cause a new surge here in the...

A new study that compares coronavirus protection from prior infection and vaccination concludes getting the shots is still the safest way to prevent COVID-19

The head of the World Health Organization says he’s worried about the omicron and delta variants of COVID-19 producing a “tsunami” of cases between them.

As schools brace for the rapid rise in omicron cases amid delta’s continued onslaught and the onset of flu season, some are closing their doors once again and moving back to online learning ahead of the holiday break.

Dr. Anthony Fauci said Wednesday that new data show booster shots of COVID-19 vaccines offer protection against the omicron variant and there is no current need to reformulate shots for variant-specific boosters.

U.S. health officials say that while the omicron variant of the coronavirus is rapidly spreading in the country, early indications suggest it may be less dangerous than delta, which continues to drive a surge of hospitalizations

As national focus turns to the newly identified omicron variant, New Jersey hospitals are seeing a sharp rise in cases from the still dominant delta strain. Figures shared by Gov. Phil Murphy reflect a nearly 20% increase in COVID hospitalizations statewide two weeks in a row. Specifically, that number jumped 22% between Nov. 15 and Nov. 22, and another 18%…

The U.S. death toll from COVID-19 has surpassed 700,000.

The delta variant is causing a surge in infections among kids in the U.S. and elsewhere, but experts say there are no strong signs yet that it is causing more severe disease for young patients

COVID-19 deaths and cases in the U.S. have climbed to levels not seen seen since last winter, wiping out months of progress and potentially bolstering President Joe Biden’s argument for sweeping new vaccination requirements

An upstate New York hospital will stop delivering babies later this month, in part because of employee resignations over a requirement they be vaccinated against COVID-19

A new CDC study out Friday provides what may be the most jolting evidence yet of the threat the highly contagious delta variant may pose to the fully vaccinated, particularly as it usurped every other COVID-19 strain to dominate American cases.

Scottie B. Day, physician-in-chief at Kentucky Children’s Hospital, says that COVID-19 admissions are three times higher now than they were at the end of July and the majority of patients are unvaccinated. 

The latest NBC News tally showed that the U.S. has recorded at least 40 million cases and over 651,000 deaths, as the fourth wave brought on by the delta variant continues to spread throughout the country.

This fourth wave of COVID cases was brought on by the Delta variant and it is overwhelming hospitals across the country.

Florida is in the grip of its deadliest wave of COVID-19 since the pandemic began, a disaster driven by the highly contagious delta variant

America’s employers added just 235,000 jobs in August, a modest gain after two months of robust hiring at a time when the delta variant’s spread has discouraged some people from flying, shopping and eating out

New Jersey expects to begin administering its first COVID booster shots to the most vulnerable in three weeks, while Gov. Phil Murphy said Monday he won’t extend pandemic unemployment benefits to roughly 500,000 residents when the program expires Saturday. He says continuing the latter simply costs too much. Shuttered vaccine mega-sites will reopen “for a concentrated period of time” to…

Southern Lousiana’s hospitals are packed with patients from the latest coronavirus surge.

People infected with the delta variant of the coronavirus have double the risk of hospitalization compared with earlier versions of the virus, according to a large study from England published Friday in The Lancet Infectious Diseases. The study confirms prior research that suggested the highly infectious variant could lead to greater risk of hospitalization, including research from Scotland published in June. The...