America's leading infectious disease expert Dr. Anthony Fauci told Reuters Thursday he hopes federal health authorities can reach a conclusion on the J&J COVID-19 vaccine "quickly and get back on track." 

While some have questioned whether the Johnson & Johnson COVID-19 vaccine pause will contribute to shot hesitancy or even turn some away from seeking a jab, the U.S. Surgeon General said Friday that it should be seen as a sign that the "safety system is workin…

A Mississippi man who experienced a blood clot after receiving the Johnson & Johnson COVID-19 vaccine, has been left paralyzed on one side of his body and unable to talk, his family said.

Approximately 5,800 fully vaccinated Americans - out of 66 million who received the shots - still became infected with COVID-19, according to Centers for Disease Control and Prevention.

New Hampshire's mask mandate expired Friday after the state's governor announced in a tweet on Thursday that it would not be renewed.

New U.S. government data show the country saw around 600,000 more deaths than usual during a 13-month span. COVID-19 was blamed for most of those deaths.

Breaking news Thursday revealed former Vice President Mike Pence underwent surgery to implant a pacemaker after experiencing a slow heart rate. But what is this device and how does it work?

National Institutes of Health (NIH) director Dr. Francis Collins praised federal health officials Thursday for their handling of the Johnson & Johnson vaccine pause, telling "Your World": "I think they're doing it exactly right."

Those who completed the two-dose regimen for Pfizer's COVID-19 vaccine will likely need a third shot within 12 months, CEO Albert Bourla said.

A Tennessee woman, who was hospitalized for blood clots after receiving the J&J COVID-19 vaccine, is speaking out about her ordeal.

Adenoviruses can cause a wide variety of illnesses in humans, from the common cold to gastrointestinal infections to pink eye.

As airlines continue to allow passengers to book middle seats on planes, new research says that leaving the middle seat empty could reduce the spread of COVID-19.

European countries diverged Wednesday on whether they would push ahead with giving their residents Johnson & Johnson's COVID-19 vaccine after reports of very rare blood clots in a handful of recipients in the United States.