The tests are not reliable enough to guide policy on lockdowns and reopenings, experts said. But they can help model the spread of the virus.
Author: APOORVA MANDAVILLI
F.D.A. Approves First Coronavirus Antibody Test in U.S.
Such a test may help scientists learn how widespread the infection is, and how long people remain immune after recovering.
Infected but Feeling Fine: The Unwitting Coronavirus Spreaders
The C.D.C. director says new data about people who are infected but symptom-free could lead the agency to recommend broadened use of masks.
Shielding the Fetus From the Coronavirus
New studies suggest the virus can cross the placenta, but newborns have been mildly affected if at all.
Can You Become Immune to the Coronavirus?
It’s likely you can, at least for some period of time. That is opening new opportunities for testing and treatment.
A Simple Regimen Can Prevent TB. Why Aren’t More People on It?
Two antibiotics, taken for a month, can stop a leading killer. But “when it’s for TB, people just sort of shrug.”
Breast Milk Is Teeming With Bacteria — That’s Good for the Baby
Breast-fed milk may nourish a baby’s microbiome in ways that bottled breast milk can’t.
An H.I.V. Cure: Answers to 4 Key Questions
Translating the latest success against the AIDS virus into a practical treatment will take years — if it happens at all. Here are answers to some of the most pressing questions raised by the news.
H.I.V. Is Reported Cured in a Second Patient, a Milestone in the Global AIDS Epidemic
Scientists have long tried to duplicate the procedure that led to the first long-term remission 12 years ago. With the so-called London patient, they seem to have succeeded.
Global Health: The World Needs a Urine Test for TB. But It’s Already Here.
The W.H.O. has recommended such a test for H.I.V.-positive patients since 2015. But in poor countries, few qualifying patients are receiving it.