Rapid Covid Tests for the Holidays: Your Questions, Answered

Earlier this month, the Biden administration announced that it would soon require private health insurers to reimburse consumers for the cost of at-home coronavirus tests. It was a step toward…

F.D.A. Will Permanently Allow Abortion Pills by Mail

For example, a research program that the F.D.A. allowed to provide telemedicine consultations and send pills by mail reported that 95 percent of the 1,157 abortions that occurred through the…

Most of the World’s Vaccines Likely Won’t Prevent Infection From Omicron

A growing body of preliminary research suggests the Covid vaccines used in most of the world offer almost no defense against becoming infected by the highly contagious Omicron variant. All…

The C.D.C. recommends that other vaccines be preferred over J.&J.

The Centers for Disease Control and Prevention recommended on Thursday that Covid vaccines other than Johnson & Johnson’s should be preferred, after its advisers cited increasing evidence that the company’s…

Shirley Zussman, Indefatigable Sex Therapist, Is Dead at 107

Shirley Zussman, a sex therapist who was trained by William H. Masters and Virginia E. Johnson, the researchers who demystified the mechanics of sex, and who continued seeing patients until…

A Popular Test Claims to Boost I.V.F. Success. The Science Is Unclear.

For patients undergoing in vitro fertilization, there is a common test to help determine the best time to transfer the embryo for a successful pregnancy. But new research has patients…

C.D.C. Embraces ‘Test and Stay’ Policy for Unvaccinated Students

WASHINGTON — The Centers for Disease Control and Prevention said on Friday that unvaccinated students exposed to the coronavirus can remain in school, as long as they are tested for…

Scientists Are Racing to Gauge the Threat of Omicron

The good news, experts said, is that America has resources at its disposal, if it chooses to use them. Tests still work for Omicron. Vaccines are now widely available and…

Protect Abortion Rights? Virginia Democrats’ Vacation Plans Get in the Way.

Democrats have less than a month left controlling Virginia before Republicans take over the House of Delegates and the governor’s mansion. With the clock ticking, many in the party want…

C.D.C. Recommends Pfizer or Moderna Vaccines Over J.&J

The Centers for Disease Control and Prevention on Thursday recommended that Covid vaccines other than Johnson & Johnson’s should be preferred, after its advisers cited increasing evidence that the company’s…