At least 1 in 5 Americans have been infected with COVID-19. In other news, the U.S. Food and Drug Administration approved Gilead Sciences’ supplemental New Drug Application for Veklury (remdesivir) for adults and adolescents with COVID-19 who are not hospitalized but are at high risk of progression to severe COVID-19, hospitalization or death.

While wealthier countries have come a long way to boosting their populations with an extra shot of COVID-19 vaccines to protect against Omicron, studies in Israel are evaluating whether a fourth dose of an mRNA vaccine offers additional protection. Although the data is still early, research suggests that it might not. 

The U.S. Food and Drug Administration added another warning to the regulatory agency’s fact sheet for Johnson & Johnson’s COVID-19 vaccine. In other news, as the Omicron variant rips through the United States, top health officials have noted that the variant is so contagious that if you come into contact with it, you are likely to catch it.

Top U.S. infectious disease expert Anthony Fauci warned on January 5 against complacency about the Omicron variant of the coronavirus, saying the sheer number of cases could strain hospitals despite signs of lower severity.

The United States cannot be complacent about the Omicron variant of the coronavirus despite signs of its lower severity compared to the Delta variant, top U.S. infectious disease expert Anthony Fauci said on January 5.

The U.S. Centers for Disease Control and Prevention (CDC) on January 4 backed the agency’s week-old guidance for people seeking to end their COVID-19 isolation at five days, adding they could take a rapid antigen test if they want to and can access one, but is not requiring that.

Top U.S. infectious disease expert Anthony Fauci said there was still a danger of a surge in hospitalization due to a large number of coronavirus cases even as early data suggests the Omicron COVID-19 variant is less severe.

U.S. health experts on December 30 urged Americans to prepare for severe disruptions in coming weeks as the rising wave of COVID-19 cases led by the Omicron variant threatened hospitals, schools and other sectors impacting their daily lives.

Americans vaccinated and boosted against COVID-19 can be with family over the holidays but attending large gatherings is not safe, even for those who received a booster dose, top U.S. infectious disease expert Anthony Fauci said on December 22.

COVID-19 vaccine makers have contingency plans to deal with the Omicron variant that include a combination vaccine against the original version and the variant as well as a variant-specific booster dose, a top U.S. health official said on December 3.