The news about Janssen Pharmaceuticals' coronavirus vaccine was disappointing. But those headline efficacy figures obscure an important point: Against the most serious cases, the shot was very effective.

Coronavirus variants are spreading in the United States, threatening to spark yet a new surge. Is there a good defense?

Friday February 5, 2021 12:00-12:30 ET Join experts from the Johns Hopkins Coronavirus Resource Center (CRC) at 12pm ET on Fridays for timely, accessible updates on the state of the pandemic and the public health response.

Dr. William Moss, executive director of the International Vaccine Access Center at the Johns Hopkins Bloomberg School of Public Health, provides a coronavirus and vaccine update.

These SARS-CoV2 variants will not be the last to emerge, just as the novel coronavirus will not be the last pathogen to threaten the national security of the United States.

More than a month since the U.S. first began administering COVID-19 vaccines, many people who were not supposed to be first in line have received vaccinations.

Some U.S. community health centers say they are doling out COVID-19 shots far faster than government data suggests, likely accounting for some of a gap between how states and the federal government describe the availability of vaccine doses.

For the first time in a week, the seven-day average for daily new reported vaccinations given to Americans declined. Experts explain why there's no reason to panic.

A coronavirus mutation that appears to limit the protection of vaccines against infection has appeared in the United Kingdom, which is already struggling with a highly transmissible and apparently more lethal virus variant.

As many nations mark a year of deaths from COVID-19, all must reflect on a shaming fact: minority racial and ethnic communities have lost the most.

More Americans have received at least one dose of a COVID-19 vaccine than have tested positive for the virus, an early but hopeful milestone in the race to end the pandemic.

Friday January 29, 2021 12:00-12:30 ET Join experts from the Johns Hopkins Coronavirus Resource Center (CRC) at 12pm ET on Fridays for timely, accessible updates on the state of the pandemic and the public health response.