How many human cells does a pig need before it’s considered too human?

Putting pig organs in people is OK in the US, but growing human organs in pigs is not – why is that?

It’s normal for parents, or anyone, to have questions about vaccinations -- but what happens if your pediatrician urges a shot that’s under attack by the Trump administration?  The revolt by pediatricians, obstetricians, family physicians, infectious disease experts and internists came to a head when an advisory panel handpicked by Health Secretary Robert F. Kennedy Jr. urged an end to routine newborn vaccination against hepatitis B, a virus that can cause liver failure or liver cancer.

What are parents to do as doctors clash with Trump administration over vaccines?

Photos of the interstellar comet 3I/ATLAS show it traveling through our inner solar system. The growing collection of images has fostered intrigue around the mysterious object.

Interstellar comet 3I/ATLAS' journey through our solar system, in photos

Voyager 1, NASA’s deep-space probe, could soon become the first spacecraft to reach a historic milestone. In November 2026, the probe will be one light-day from Earth.

NASA's Voyager 1 set to achieve historic distance from Earth

The European Space Agency said that the black hole inside the spiral galaxy NGC 3783 has the mass of 30 million suns.

Astronomers detect black hole blasting winds at incredible speeds

When Alessandro Barbera was rushed to a California hospital with infant botulism in October, his father had barely heard of the disease, never mind the rare and costly treatment that likely saved the newborn’s life.  Now, however, Tony Barbera is deeply grateful for BabyBIG, the sole antidote to the paralyzing and potentially deadly illnesses linked to contaminated ByHeart infant formula.  The botulism outbreak tied to ByHeart formula has sickened at least 39 babies across in 18 states since Aug

How a rare drug made from scientists' blood saves babies from botulism

A vaccine panel led by HHS Secretary Robert F. Kennedy Jr. has voted to end the recommendation for hepatitis B shots for all newborns.

RFK Jr. succeeds in changing hepatitis B recommendation | The Excerpt

Some children recover better after traumatic brain injury than others, despite appearing similarly to doctors. Looking at the genetic and cellular level, however, reveal key differences.

Newly discovered link between traumatic brain injury in children and epigenetic changes could help personalize treatment for recovering kids

A shot of vitamin K has been given to infants at birth in the US since the 1960s. More parents are turning it down, found a new study.

More parents refusing this shot that prevents serious bleeding at birth

More parents are refusing vitamin K shots for their newborns, a study published Monday in the Journal of the American Medical Association found. It’s a trend that experts worry could have deadly consequences

More parents refusing vitamin K shots for newborns, study finds

Some U.S. hospitals are starting to put seasonal visitor restrictions in place.

Flu concerns grow in US as UK sees more cases among kids

An innovative study mapped preterm births, low birth weights and infant mortality to municipal water wells downstream from PFAS-contaminated sites. The results show the high cost of PFAS harm.

PFAS in pregnant women’s drinking water puts their babies at higher risk, study finds

Synchronizing your daily activities to your circadian rhythm could help you improve your performance on a variety of cognitive tasks − and even influence diagnosis of cognitive disorders.

What’s your chronotype? Knowing whether you’re a night owl or an early bird could help you do better on tests and avoid scams

The Nordic countries are no strangers to the long, dark winter.  Despite little to no daylight — plus months of frigid temperatures — people who live in northern Europe and above the Arctic Circle have learned how to cope mentally and physically with the annual onset of the winter blues, which can begin as early as October and last into April for some.  The winter solstice will occur Dec. 21, marking the shortest day and longest night of the year in the Northern Hemisphere.

Nordic people know how to beat the winter blues. Here's how to find light in the darkest months

Spiritual leaders’ own pain often goes unnoticed as they tend to their community’s challenges.

‘I love this work, but it’s killing me’: The unique toll of being a spiritual leader today

The nascent LGBTQ+ rights movement and the Christian right each strongly shaped the early years of HIV/AIDS, a historian explains.

How HIV/AIDS got its name − the words Americans used for the crisis were steeped in science, stigma and religious language

The following is the transcript of the interview with former FDA commissioner Scott Gottlieb, who now serves on the boards of Pfizer and United Healthcare, that aired on "Face the Nation with Margaret Brennan" on Dec. 7, 2025.

Transcript: Scott Gottlieb on "Face the Nation with Margaret Brennan," Dec. 7, 2025

Dec 6 () - Regeneron said on Saturday its experimental cancer combination therapy was effective and showed disappearance of the disease in previously untreated patients with ​a type of blood cancer in the first part of a late-stage ‌trial. The trial, which enrolled 22 patients, studied safety and preliminary efficacy of the company's therapy, odronextamab, in combination ‌with chemotherapy in patients with Diffuse Large B-Cell Lymphoma or DLBCL.

Regeneron's experimental therapy combo effective in untreated cancer patients

As it is now, the transplant system treats kidneys from all Black donors as if they are at higher risk for failing, even though only some are.

Kidneys from Black donors are more likely to be thrown away − a bioethicist explains why

The CDC's Advisory Committee on Immunization Practices, with members appointed by RFK Jr., voted to change longstanding recommendations on the hepatitis B vaccine.

New CDC recommendation postpones hepatitis B vaccine for newborns

The outbreak blamed on "gym exposure" is relatively small, but it has helped push cases tied to the Legionella bacteria to a 10-year high in Florida.

Gym tied to outbreak of obscure disease that spreads through mist

"The hepatitis B vaccine is safe and effective," said U.S. Senator Bill Cassidy of Louisiana, a Republican and a physician. "This makes America sicker."

RFK Jr.'s handpicked vaccine panel just voted to stop recommending hepatitis B shots for all newborns. Why experts object.

The committee called for "individual decision-making."

CDC vaccine panel votes to remove universal hepatitis B birth dose recommendation

The decision undoes a highly effective 34-year prevention strategy that has nearly eliminated early childhood hepatitis B infections in the U.S.

Vaccine committee votes to scrap universal hepatitis B shots for newborns despite outcry from children’s health experts

Infants will no longer receive hepatitis B vaccine at birth, CDC announces

Dec 5 (Reuters) - Vaccine makers expressed concern on Friday's decision by a U. advisory panel to scrap its long-standing recommendation that all infants ​receive a hepatitis B vaccine at birth, a shift that public health experts fear will ‌undermine decades of public health advances.

Vaccine makers raise concerns over US panel's shift away from hepatitis B shots for newborns

Hospitals for decades have provided babies their first hepatitis B vaccine. Now doctors' offices might administer the shot.

Will your baby get a hep B vaccine? What RFK panel's ruling means.

The health department told a state official the outbreak may be linked to a gym.

Health officials report 14 Legionnaires' disease cases in Florida, gym connection suspected

ATLANTA - Federal vaccine advisers selected by Health Secretary Robert F. Kennedy Jr. delayed until Friday a vote to lift a long-standing recommendation for all newborns to get the hepatitis B vaccine in what would be the most sweeping revision to the childhood vaccine schedule under Kennedy. The advisers heard presentations in the morning - including from two prominent vaccine critics recently hired by the Centers for Disease Control and Prevention - casting doubt on the safety and necessity of

CDC vaccine panel delays vote to stop recommending hepatitis B shot at birth

The CDC’s vaccine advisory panel once again delayed an expected vote on hepatitis B vaccines, after a chaotic meeting rife with misinformation.

CDC advisory panel delays vote on hepatitis B vaccines after unruly meeting

The CDC's vaccine advisory panel meets Thursday and Friday to discuss recommendations for the hepatitis B vaccine and the schedule of childhood shots.

Health

How a rare drug made from scientists' blood saves babies from botulism

RFK Jr. succeeds in changing hepatitis B recommendation | The Excerpt

Newly discovered link between traumatic brain injury in children and epigenetic changes could help personalize treatment for recovering kids

More parents refusing this shot that prevents serious bleeding at birth

What are parents to do as doctors clash with Trump administration over vaccines?

Newly discovered link between traumatic brain injury in children and epigenetic changes could help personalize treatment for recovering kids

What are parents to do as doctors clash with Trump administration over vaccines?

More parents refusing vitamin K shots for newborns, study finds

Flu concerns grow in US as UK sees more cases among kids

PFAS in pregnant women’s drinking water puts their babies at higher risk, study finds

What’s your chronotype? Knowing whether you’re a night owl or an early bird could help you do better on tests and avoid scams

Nordic people know how to beat the winter blues. Here's how to find light in the darkest months

‘I love this work, but it’s killing me’: The unique toll of being a spiritual leader today

How HIV/AIDS got its name − the words Americans used for the crisis were steeped in science, stigma and religious language

Transcript: Scott Gottlieb on "Face the Nation with Margaret Brennan," Dec. 7, 2025

Regeneron's experimental therapy combo effective in untreated cancer patients

Kidneys from Black donors are more likely to be thrown away − a bioethicist explains why

New CDC recommendation postpones hepatitis B vaccine for newborns

Gym tied to outbreak of obscure disease that spreads through mist

What’s your chronotype? Knowing whether you’re a night owl or an early bird could help you do better on tests and avoid scams

RFK Jr.'s handpicked vaccine panel just voted to stop recommending hepatitis B shots for all newborns. Why experts object.

CDC vaccine panel votes to remove universal hepatitis B birth dose recommendation

Vaccine committee votes to scrap universal hepatitis B shots for newborns despite outcry from children’s health experts

Infants will no longer receive hepatitis B vaccine at birth, CDC announces

Vaccine makers raise concerns over US panel's shift away from hepatitis B shots for newborns

Will your baby get a hep B vaccine? What RFK panel's ruling means.

Health officials report 14 Legionnaires' disease cases in Florida, gym connection suspected

CDC vaccine panel delays vote to stop recommending hepatitis B shot at birth

CDC advisory panel delays vote on hepatitis B vaccines after unruly meeting

CDC's upcoming vote on hepatitis B vaccine could impact childhood immunization

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