Unlike prior strains, the Delta variant is triggering higher viral loads in rare cases of “breakthrough” infections in people fully vaccinated against COVID-19, making transmission more likely and causing the U.S. Centers for Disease Control and Prevention...

COVID-19 cases in Britain have fallen for six days in a row, even though the government lifted all but a few social distancing restrictions last week. The shift has scientists scratching their heads, as many of them...

Here’s some of HealthDay’s top stories for Tuesday, July 27: Choosing the best blood pressure drug for you. A study involving data on more than 3 million people focused on two major classes of drugs used to...

In a sign that the United States has reached a “tipping point” in its campaign to vaccinate Americans, California and New York City announced vaccine or testing mandates for their employees on Monday while the Department of...

Serious “long COVID” symptoms could qualify as a disability and make patients eligible for federal assistance, President Joe Biden said Monday. Some recovered COVID-19 patients have lasting problems such as fatigue, brain fog, joint pain, fever and...

Pfizer and Moderna are expanding trials of their COVID-19 vaccines in children ages 5 to 11, to more closely measure the risk of heart inflammation and other rare side effects that occurred in teens and young adults...

Two long used types of blood pressure drugs are equally effective, but the less popular one seems to have fewer side effects, according to a large “real-world” study. The two classes of medication are both recommended as...

While efforts to develop Alzheimer’s medications have so far borne little fruit, new research highlights the therapeutic promise of two non-drug tools: light and sound. According to a pair of small new studies, exposing Alzheimer’s patients to...

(HealthDay News) – If you’re a rare case of someone who had an allergic reaction to your first dose of the Pfizer or Moderna COVID-19 vaccines, here’s reassuring news: It’s safe for you to get that necessary...

COVID-19 vaccine hesitancy among American adults fell by one-third in the first five months of 2021, a new study finds, but distrust of vaccines and the government are still keeping many people from getting vaccinated. Researchers analyzed...