The U.S. launched a campaign to offer boosters of Pfizer's COVID-19 vaccine to millions of Americans on Friday even as federal health officials stressed the real problem remains getting first shots to the unvaccinated.
The Centers for Disease Control and Prevention on Thursday endorsed booster shots for millions of older or otherwise vulnerable Americans, opening a major new phase in the U.S vaccination drive against COVID-19.
The average person doesn't need a COVID-19 booster yet, an international group of scientists — including two top U.S. regulators — wrote Monday in a scientific journal.
"First and foremost, if you are unvaccinated, we would recommend not traveling," CDC Director Dr. Rochelle Walensky said.
The US could soon see more than 200,000 new cases of Covid-19 every day as the Delta variant spreads at a rapid pace, particularly among unvac…
Scientists cited new information about the ability of the delta variant to spread among vaccinated people in announcing new CDC mask recommendations.
The nation's top health agency was expected to backpedal on its masking guidelines and recommend that even vaccinated people wear masks indoors.
A new poll underscores challenges facing health officials amid soaring infections in some states: 45% of unvaccinated Americans say they definitely won't get shots. Plus, get the latest data and updates on a persisting pandemic.
The surge in Covid-19 cases fueled by the Delta variant and vaccine hesitancy has now led to increasing rates of hospitalizations and deaths.
President Biden took a cautious victory lap Friday, saying 300 million COVID-19 vaccine shots have been administered in the 150 days since he took office.
The CDC on Thursday will ease indoor mask-wearing guidance for fully vaccinated people, allowing them to safely stop wearing masks inside in many instances.
President Joe Biden said Friday that K-12 schools "should probably all be open" in the fall for in-person learning after more than a year of most of the country's kids facing the challenge of remote instruction due to the coronavirus pandemic.
The U.S. government’s first look at the real-world use of COVID-19 vaccines found their effectiveness was nearly as robust as it was in controlled studies. Here's the latest virus news.
A new daily record for administering Covid-19 vaccines was set Friday, but many experts reiterate that the pandemic is far from over.
A top health official warned the US could see a surge in Covid-19 infections if Americans let up on restrictions now. He argued, however, that it was entirely avoidable. That was Monday. On Tuesday, Indiana and Virginia unveiled plans to loosen mitigation measures anyway, joining at least a dozen other states that had already done so since the start of the month.
Spring break is here and people suffering from a year of cabin fever are throwing caution to the wind. Saturday marked the 10th straight day o…
Experts are worried some Americans are letting up too early -- at a critical time when looming dangers are threatening to wipe out the progress the US has made in its battle against Covid-19.
A safer future is just a few months away, but it's crucial that Americans keep practicing Covid-19 safety precautions and heeding health officials' advice as the country works to vaccinate more people, one expert told CNN on Monday.
A grim new forecast confirms what experts caution amid declining Covid-19 cases and hospitalizations: when it comes to the pandemic, the US is not yet out of the woods.
President Joe Biden's urgent goal of tackling the Covid-19 pandemic depends heavily on persuading Americans to get the vaccine as quickly as p…
So you finally got your coronavirus vaccine. It took weeks of waiting, maybe a few calls before hitting the jackpot with a drive-through vaccination clinic. Or maybe you're a health care worker who got the shot at work.
Covid-19 cases in the US may be trending in the right direction, but experts say there's still reason to worry.
With the US now tallying more than 25 million Covid-19 cases, experts say now is the time to double down on safety measures and speed up vaccine rollouts before a variant further surges infections.
As the United States nears 6 million Covid-19 cases, the coordinator of the White House coronavirus response urged Americans not to wait for a vaccine to stop community spread of the virus.
(CNN) -- In the span of a week and a half, the number of coronavirus cases in the United States has doubled, yet officials are saying this is still the first wave of the pandemic.