Stories by Tanya Lewis

A novel influenza variant called subclade K appears to be driving an uptick in cases and hospitalizations throughout the U.S. and other countries

The U.S.’s and Denmark’s health systems are starkly different, so it makes sense that their vaccination schedules would differ, too

A report published by the CDC reaffirms the effectiveness of COVID vaccines at preventing severe disease in children

FDA officials are newly scrutinizing several approved therapies to treat RSV in babies despite the fact that these shots were shown to be safe in clinical trials

The FDA is reportedly mulling changes that could make childhood vaccines less accessible and more expensive

Scientific American asked experts which type of Thanksgiving pie spikes blood sugar the most—and how to eat healthier while still enjoying the holidays

Strong evidence suggests that food allergies are caused by a lack of exposure to food allergens—not by exposure to toxins

In a reversal, the Food and Drug Administration has removed black box warnings on hormone replacement therapies for menopause

A new study adds to the evidence that viral infections during pregnancy might contribute to a child’s likelihood of having autism

This is the third Salmonella-related egg recall of 2025. Here’s what to do if you have recalled eggs

Despite the widespread use of medication during pregnancy, a lack of clinical research leaves patients and doctors navigating treatment with dangerously few data.

Less than 1 percent of clinical trials include pregnant or breastfeeding people. Experts say that needs to change

President Trump says Tylenol is not safe for young children. Here’s what the science says about acetaminophen

Scientists discovered two genes involved in hyperemesis gravidarum, a condition that can cause extreme nausea and vomiting during pregnancy. Now they’re looking into treatments

The Trump administration has frozen billions in funding to the world’s richest university after Harvard refused to acquiesce to its demands

The rates of fatal crashes and crime are both lower on public transportation than on roadways

The bacterial infection pertussis has sparked an uptick in cases nationwide and has caused two deaths in Louisiana

USAID is responsible for global health efforts that have saved the lives of millions of children. What happens when those programs are cut?

A new Trump administration health initiative called Operation Stork Speed aims to improve the safety of infant formula and reduce contamination risk, but budget and staffing cuts may hinder that

USAID investments significantly reduced deaths among children under age five and women of reproductive age, studies show

Outpatient flu visits and hospitalizations are higher than at any time in the past 15 years

The CDC has sequenced bird flu viruses from people in Nevada and Wyoming, and the Trump Administration has released a strategy for reducing egg prices

Public health experts discuss lessons learned from the U.S. response to the COVID pandemic, on topics ranging from school closures to trust in science

Up to 50 transplant patients will receive a genetically modified pig kidney in a clinical trial that will launch this summer