CDC data shows the vaccine was only 16% effective against the predominant strain this winter. Luckily, flu cases remained far lower than usual.
The pandemic "has been more devastating" than official numbers show, the researchers say.
Heavy alcohol consumption had a greater effect, but just one drink a day was linked to a smaller brain.
The EPA has approved Oxitec's modified skeeters for release into the wild, as part of a strategy to reduce mosquito-borne diseases.
David Bennett received the heart two months earlier, with no apparent short-term complications, and his cause of death is still unclear.
The man also sold unapproved "cancer vaccines" for years.
Over 170 million Americans were exposed to high amounts of lead as children, researchers say—enough to affect their cognition in later life.
An oversight committee said 48 people should have never been diagnosed with an "unknown" brain disorder, but some say the dementia-like cases need more study.
China's low case rates are still impressive compared with the rest of the world. But for how long?
Harvard's Apple Women’s Health Study aims to shed light on polycystic ovary syndrome, a common but little-understood condition.
For the second time in two years, the CDC is expected to announce that it will no longer recommend most Americans wear masks to curb covid-19.
The findings, obtained from a man who died while undergoing an EEG, might suggest that people experience a flash of memories as they pass away.
The One Male Condom can be used for vaginal sex, too, but it's the first to be tested and developed specifically for anal sex.
Vaccines also show some promise in reducing symptoms among those already experiencing long covid, a review of evidence found.
In 2018, more people died from bullets than in car crashes, a new study found.
"The idea that some lives matter less is the root of all that is wrong with the world."
An annual covid-19 vaccination in the same vein as the yearly flu vaccine is also being reviewed.
Flu-related cases, hospitalizations, and deaths were low again this winter, largely thanks to many public health measures meant to contain covid-19.
A recently discovered case in Malawi is the first seen on the continent in over five years, though it appears to have been imported.
A shortage of blood sample tubes is causing "widespread disruptions" in STD testing, as cases of syphilis increase sharply.
