Religious rules guiding Catholic health care systems often mean their doctors can't prescribe contraceptives or perform tubal ligations. And sometimes that leaves patients with few other options.
The new shots from Moderna and Pfizer-BioNTech target both the original strain of the coronavirus and the omicron BA.4/BA.5 subvariants that most people are catching now.
For decades, the U.S. medical system has adhered to a legally recognized standard for death, one embraced by most states. Why is a uniform standard for the start of human life proving so elusive?
Rates of new cases are declining in major cities, suggesting public health campaigns are working.
Polio is spreading in a few New York counties with low vaccination rates. Experts warn that other places in the U.S. could face the same challenge.
Dr. Anthony Fauci helped guide the U.S. through the COVID crisis, and earlier in his career played a key role in the response to AIDS. He has served under seven presidents.
Pfizer has submitted data on its bivalent COVID-19 booster shot that specifically targets the latest omicron subvariants. If authorized, the company says the shots could be ready as soon as September.
The U.S. is facing a shortage of the monkeypox vaccine as the outbreak grows rapidly. The White House is pursuing a controversial strategy where each person only gets a fraction of the full dose.