Many medical experts — including members of his own staff — worry about whether Dr. Hahn has the fortitude and political savvy to protect the scientific integrity of the F.D.A. from Mr. Trump.
The Food and Drug Administration has issued warning letters to 10 companies it says are illegally selling flavored e-cigarette products that have come under attack as targeting teens.
Recent studies indicate that the human body does not retain the antibodies that build up when people are infected with the coronavirus, meaning there may be no lasting immunity to the virus, even with a vaccine.
The technology was old, the data poor, the bureaucracy slow, the guidance confusing, the administration not in agreement. The coronavirus shook the world's premier health agency, hampering the U.S. response to the crisis.
A new study found levels of the widespread herbicide and its breakdown products reduced, on average, more than 70 percent in both adults and children after just six days of eating organic.
"Many of the chemical profiles that we see in cetaceans are similar to the types of chemical profiles that we see in humans who live in those coastal areas."
A new study found that animals known to carry harmful diseases such as the novel coronavirus are more common in landscapes intensively used by people.