Stories by Tara Haelle

A new Lyme disease vaccine made by Pfizer and Valneva could lower infection rates of the tick-borne illness, but federal approval and patient uptake could be a challenge

Three types of diabetes medication are improving the outlook for patients with kidney disease

A new drug slows insulin-dependent diabetic deterioration and has sped up development of a complete remedy

The journey toward an RSV vaccine for children has been wrought with tragedy and setbacks. But six decades after scientists embarked on that path, they are nearing the finish line

Tragic RSV vaccine trials in the 1960s set the field back for decades. Here’s how scientists finally made breakthroughs in RSV immunization

More than 13.8 million Americans could have Alzheimer’s by 2060, and at the rate care facilities are closing, many of them will have nowhere to go. Regina Shih of the State Alzheimer’s Research Support Center (StARS) wants to help solve that problem

Thimerosal, which contains an organic compound of mercury, has been phased out as a preservative for vaccines. Here’s how we know it was safe to use

Spillover from the politicization of the COVID pandemic has eroded vaccine confidence, but everyday people can play a role in building it back up

Polio, a disease that can cause lifelong paralysis, has been eliminated from the U.S. Experts fear a resurgence if lifesaving vaccines are revoked under the new administration

Recent studies show that the Supreme Court ruling that overturned the national right to abortion led to a sharp increase in people—particularly younger, single individuals—seeking a vasectomy or a tubal sterilization procedure

Vaccines are the first step toward health equity in many parts of the world

Certain adults may need to get an additional dose of the measles vaccine. Here’s how to know if you have adequate immunity to measles

Separate outbreaks of pneumonia in children have cropped up in the U.S., China and Europe. Public health experts say the uptick in cases is not caused by a novel pathogen

The RSV vaccine is the latest in a series of immunizations that could protect pregnant people and their babies from severe disease and death

Decades of failed attempts have given way to several successful vaccines and treatments for the respiratory disease RSV

Your questions answered about what RSV is, how it spreads, what vaccines are on the way and who is most at risk

COVID shutdowns limited the spread of influenza in 2019–2020. Several factors could mean this season will be more severe

The FDA’s decision to expand eligibility for the Pfizer vaccine to young kids could mean less illness, safer school and more freedom

Pfizer expects to have safety and efficacy data on five- to 11-year-olds by the end of the month, but federal authorities must still review it

Those who were exposed to Ground Zero have increased rates of certain cancers and other health problems

Pfizer-BioNTech vaccine approval is younger teens’ shot at freedom

Immunization reduces the likelihood of a painful reemergence of the virus in kids

California coast visitors are now 91 percent less likely to be bitten by a great white than they were in 1950, in part because beach populations of humans have risen dramatically

Blood banks begin using the method in donations this summer as the northward spread of chikungunya continues