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AIDS virus used in gene therapy to fix 'bubble baby' disease

A gene therapy that makes use of an unlikely helper, the AIDS virus, gave a working immune system to 48 babies and toddlers who were born without one, doctors reported Tuesday. Resu...

COVID treatment has improved, but many wish for an easy pill

If Priscila Medina had gotten COVID-19 a year ago, she would have had no treatments proven safe and effective to try. But when the 30-year-old nurse arrived at a Long Island hospital last month, so sh...

Federal officials reverse limits on fetal tissue research

Federal officials have reversed Trump administration restrictions on using human fetal tissue for medical research, clearing the way for scientists to seek government money for work that in the past h...

Immune-boosting drug may help before lung cancer surgery

A drug that helps the immune system fight cancer gave dramatic results when used with chemotherapy before surgery in patients with operable lung tumors, doctors report. One out of 4 ...

Unusual treatment shows promise for kids with brain tumors

For decades, a deadly type of childhood cancer has eluded science’s best tools. Now doctors have made progress with an unusual treatment: Dripping millions of copies of a virus directly into kids’ bra...

EXPLAINER: Doctor testifies about Floyd's heart activity

George Floyd had “pulseless electrical activity” and his heart wasn’t beating when he arrived at a Minneapolis hospital, a doctor testified Monday. Dr. Bradford Langenfeld was on dut...

Man's Ebola relapse spawned dozens of new cases in Africa

A man in Africa who developed Ebola despite receiving a vaccine recovered but suffered a relapse nearly six months later that led to 91 new cases before he died. The report adds to evidence that the d...

Can I take painkillers before or after a COVID-19 vaccine?

Can I take painkillers before or after a COVID-19 vaccine? Don’t take them before a shot to try to prevent symptoms, but if your doctor agrees, it’s OK to use them afterward if neede...

Researchers study impact of pandemic cancer screening pause

John Abraham’s colonoscopy was postponed for several months because of the pandemic. When he finally got it, doctors found a growth too big to be removed safely during the scope exam. He had to wait s...

Pfizer COVID-19 vaccine works well in big 'real world' test

A real-world test of Pfizer’s COVID-19 vaccine in more than half a million people confirms that it’s very effective at preventing serious illness or death, even after one dose. Wedn...

New variants raise worry about COVID-19 virus reinfections

Evidence is mounting that having COVID-19 may not protect against getting infected again with some of the new variants. People also can get second infections with earlier versions of the coronavirus i...

Can I take painkillers before or after a COVID-19 vaccine?

Can I take painkillers before or after a COVID-19 vaccine? It's best to avoid them, unless you routinely take them for a medical condition. Although the evidence is limited, some pai...

Studies extend hopes for antibody drugs against COVID-19

New results extend hopes for drugs that supply antibodies to fight COVID-19, suggesting they can help keep patients out of the hospital and possibly prevent illness in some uninfected people. ...

FDA approves 1st long-acting HIV drug combo, monthly shots

U.S. regulators have approved the first long-acting drug combo for HIV, monthly shots that can replace the daily pills now used to control infection with the AIDS virus. Thursday’s a...

Some COVID-19 mutations may dampen vaccine effectiveness

Scientists are reporting troubling signs that some recent mutations of the virus that causes COVID-19 may modestly curb the effectiveness of two current vaccines, although they stress that the shots s...