Gorillas at the San Diego Zoo Safari Park developed a cough last week. The apes were tested and found to have the virus. It may have come through a human staffer, despite precautions.
The House speaker told colleagues she had spoken with the chairman of the Joint Chiefs of Staff about keeping the nuclear codes from an "unhinged President."
Studies based on private health data are crucial to understanding dangers posed by pollution. A new rule makes it harder for the EPA to consider many studies when setting safeguards.
CNN's chief medical correspondent says it's never too late to develop new brain pathways. Even small changes, like switching up the hand you use to hold your fork, can help optimize brain health.
Boston Children's Hospital saw a precipitous drop in cases during the spring shutdown, and the trend continues. Researchers are asking why — and what it would take to keep up the change post-pandemic.
Invasive lionfish, native to the Indian Ocean, have had a big impact on reef ecosystems in the Caribbean and the Gulf of Mexico. A new inexpensive trap may help control these voracious predators.
The new strain, which likely originated in the U.K. in September, has spread to more than 30 countries across several continents. Meanwhile, the U.S. saw record COVID-19 deaths in December.
The rollout of vaccines for COVID-19 has been slower than expected. Reasons include local logistics, lack of funding and staffing struggles during the winter holidays.