Colossal Biosciences, a Texas company trying to bring extinct species back to life, reports creating artificial eggs that would be necessary to revive extinct birds such as the dodo.

Prospective parents can now pick embryos based on risk predictions for thousands of diseases and odds for specific traits. But should they?

The treatment, developed by Regeneron Pharmaceuticals, is for a very rare form of deafness. But it represents a medical milestone.

A Texas biotech company is trying to bring mammoths and other extinct creatures back to life. The science is as intriguing as the ethical questions are thorny.

Doctors and public health officials are concerned about the drop in health alerts from the Centers for Disease Control and Prevention since President Trump returned for a second term.

The Centers for Disease Control and Prevention dropped its advice that kids get an annual flu shot at a time when flu cases and hospitalizations are surging.

The Centers for Disease Control and Prevention is reducing the number of vaccines recommended for all children. The action follows a presidential memorandum ordering a review of the U.S. schedule.

The Centers for Disease Control and Prevention is reducing the number of vaccines recommended for all children. The action follows a presidential memorandum ordering a review of the U.S. schedule.

An experimental gene-editing treatment shows promise for permanently lowering levels of cholesterol and triglycerides, possibly helping cut the risk for heart disease.

Aluminum has been added to certain vaccines for decades to boost their effect on the immune system, and has been shown to be safe. But, the Trump administration may be considering removing it.

Access to the COVID-19 vaccines remains difficult because of an unusual and unexplained delay by the Centers for Disease Control and Prevention in accepting recommendations from its advisers.

Scientists created the eggs using DNA from adult skin cells, a step that could someday potentially lead to new ways to treat infertility and enable gay couples to have genetically related children.

Though the FDA narrowed criteria for the shots, many people still want them, to avoid illness and protect vulnerable family members. Some are turned down at the pharmacy or have to jump through hoops.

The Food and Drug Administration approved the next round of COVID-19 vaccines, but is restricting them to people at high risk for COVID complications.

Scientists have recorded a human embryo implanting in a womb in real time. The implications of how it happens could lead to more and better treatments for infertility.

A Chinese scientist, He Jiankui, made a shocking announcement to the world in 2018: He had secretly engineered the birth of the first gene-edited babies. The birth of the twins was seen as reckless an...

There's a fresh push to edit the genes of human embryos to prevent diseases and enhance characteristics that parents value. Bioethicists say just because it's possible doesn't mean it should be done.

Health Secretary Robert F. Kennedy Jr. apparently embraces the outdated "miasma theory" of disease instead of the widely accept "germ theory" of disease, which may help explain some of the actions he'...

Federal health officials have changed the game for COVID vaccine access. Pregnant moms and others who rely on them to protect a high-risk family member are scared.

Health Secretary Robert F Kennedy Jr. announced that CDC recommendations for COVID vaccines will no longer include healthy pregnant women and healthy children.

For the first time, doctors have created a customized treatment using the revolutionary gene-editing technique known as CRISPR to treat a baby with a rare, life-threatening genetic disorder.

The Trump administration has launched a $500 million project to develop a universal flu vaccine that won't need yearly updates. But vaccine experts are mystified by its focus on a dated technology.

President Trump issued an executive order Monday banning federal funding for any research abroad that involves a field of scientific study known as "gain-of-function" research. Here's what it means.

The interim U.S. Attorney for the District of Columbia has sent letters to several leading medical journals asking for information about their editorial practices.

The Department of Health and Human Services says it will require new vaccines to be tested against a placebo, which could complicate and delay Food and Drug Administration approval of many vaccines.

The unexpected elimination of funding for the decades-long research project focused on women's health shocked scientists. They were heartened by the quick restoration of support.

The Women's Health Initiative, begun in the 1990s, has made many important discoveries. Now funding to collect more research data will end in September.

The new page emphatically promotes a theory that many scientists question. Meanwhile, basic information about COVID testing and vaccines has disappeared.

The new research will study the physical and mental health effects of gender transition. It comes on the heels of the administration cutting hundreds of research grants for LGBTQ+ health.

The Trump administration has ordered the National Institutes of Health to study the physical and mental health effects of undergoing gender transition, including regret. The research comes at a time w...

NPR obtained emails that went out last week to leaders at health agencies offering to transfer them to postings in tribal communities. Officials close to Dr. Anthony Fauci got the offer.

A top vaccine advisor at the FDA was forced to resign on Friday. In his resignation letter, Dr. Peter Marks wrote "truth and transparency are not desired," by HHS Secretary Robert F. Kennedy Jr.

The National Institutes of Health is terminating dozens of studies examining why people are hesitant about vaccines and how to increase uptake. mRNA vaccine research may be on the chopping block, too.

The National Institutes of Health is terminating dozens of studies examining why people are hesitant about vaccines and how to increase uptake. mRNA vaccine research may be on the chopping block, too.

SARS-CoV-2 has been evolving the ability to evade the immune system about twice as fast as the fastest-evolving flu virus. It averages more than a dozen significant changes every year.

You've heard of the woolly mammoth. But have you heard of woolly mice? These critters were genetically modified by the Dallas-based biotech company Colossal Biosciences to have the same "woolly" and f...

Hoping to bring the giant, ancient animal back from extinction, scientists have created a far smaller woolly creature. Woolly mice have some of the key traits of mammoths, including their thick, hairy...

The National Institutes of Health had to stop considering new grant applications, delaying funding for research into diseases ranging from heart disease and cancer to Alzheimer's and allergies.

It's an unusual winter for respiratory illnesses. The flu is peaking twice: once in early January and again in February. Meanwhile, it's the mildest COVID winter since the pandemic began.