Camila Domonoske

As the remains of former President George H.W. Bush lie in state at the U.S. Capitol, LGBTQ activists and some journalists have been calling attention to his mixed legacy on the HIV/AIDS epidemic, which was raging during his administration.

Bush died at the age of 94, on the eve of World AIDS Day, Dec. 1.

The Centers for Disease Control and Prevention has traced an ongoing E. coli outbreak to romaine lettuce grown in the Central Coastal region of California.

Lettuce from other parts of the U.S. and Mexico is safe to eat, the CDC says. However, if you're not sure where your romaine lettuce came from, err on the side of caution and throw it out, health experts say.

A total of 43 people in 12 states have been infected in this outbreak. No deaths have been reported.

Cut Caesar salad off the menu this week: The Centers for Disease Control and Prevention says a multistate E. coli outbreak is underway, and romaine lettuce is to blame.

Thirty-two people are sick, including 13 who were hospitalized; no deaths have been reported. An additional 18 people were sickened in Canada.

Evidence points toward romaine lettuce as the likely source, but the CDC can't get more specific than that.

Updated at 7:45 p.m. ET

Dr. Leana Wen, the health commissioner for the city of Baltimore, has been named the new president of Planned Parenthood Federation of America.

It will be the first time in nearly five decades that a doctor is the head of Planned Parenthood, according to the organization. She's replacing longtime President Cecile Richards, who announced in January that she would be stepping down.

A hospital in Texas has cut ties with a nurse who apparently posted about a young patient with the measles in a Facebook group dedicated to "anti-vaxxers," people who reject the scientific evidence of the safety and effectiveness of vaccines.

Screenshots show a self-identified nurse saying the sick child's symptoms helped her understand why people vaccinate their children, but that "I'll continue along my little non-vax journey with no regrets."

James Harrison, an Australian man whose blood contains a rare antibody that can create a treatment that saves babies' lives, has donated plasma one last time.

Harrison, 81, is now over the age limit for donors — in fact, he hit the cap months ago.

But the Australian Red Cross Blood Service let him donate one last time on Friday. The service estimates that over the course of his life, he has helped save some 2.4 million babies.

A "computer algorithm failure" in the U.K. kept hundreds of thousands of women from getting notified it was time for a mammogram, potentially shortening the lives of up to 270 women, the National Health Service says.

The U.K. sends letters to women who are due for breast screening, according to British national guidelines, which call for exams every 3 years for women age 50-70. Because of the computer glitch, an estimated 450,000 women in England around the age of 70 did not receive their mammogram invitation.

Reuters has published an extensive report into the killing of 10 Rohingya men in Myanmar in September, pulling from photographs and eyewitness accounts to describe how villagers and paramilitary forces killed the men execution-style and buried them in one grave.

The investigation made headlines long before it was published.

Simon Bramhall, the British surgeon who branded his initials onto patients' livers during transplant surgeries at least twice, has been ordered to do 120 hours of community service and pay £10,000 (more than $13,600).

Bramhall pleaded guilty in December to two counts of assault for branding his patients.

Dunkin' Donuts has removed all artificial dyes from its doughnuts, nearly one year ahead of schedule, as the company continues to work to find replacements for synthetic coloring in its other menu items.

Rick Golden, Manager of Donut Excellence for Dunkin' Brands, announced the news on Thursday, saying that "bright, colorful confections" are a hallmark of Dunkin's doughnut lineup. The colors will remain, but the artificial colorings will be gone.

The liver is a fascinating thing.

If you want to read a thought-provoking story about the liver, you might like to learn about the challenges of building a fairer system for allocating access to liver transplants.

Or the history of efforts to grow "liverettes" in petri dishes.

Updated at 8 p.m. ET

CVS is preparing to buy the health insurance giant Aetna for $69 billion, the companies say.

Dogs shower their owners with affection and demand walks on a regular basis. And according to medical researchers, a corresponding link between dog ownership and heart health — previously called "probable" by experts — is supported by Swedish data.

An examination of Sweden's national records — spanning more than 3.4 million people and 12 years — found that registered dog owners had a lower rate of cardiovascular disease and a lower risk of death.

The University of Notre Dame will no longer provide birth control coverage to students and employees, taking advantage of the Trump administration's decision to weaken the Affordable Care Act's birth control mandate.

As Indiana Public Media notes, the Catholic university previously "made the coverage available through a third-party service separate from the rest of its health insurance and attempted to sue for the right to not offer the coverage at all."

More Americans are drinking alcohol, and a growing number of them are drinking to a point that's dangerous or harmful, according to a new study published in JAMA Psychiatry this week.

The study, sponsored by a federal agency for alcohol research, examined how drinking patterns changed between 2002 and 2013, based on in-person surveys of tens of thousands of U.S. adults.

Charlie Gard, the British baby with a terminal illness who became subject to a high-profile legal dispute, has died in hospice care, according to multiple media reports.

The Guardian, citing Gard's parents, reports that the infant died on Friday, one day after being transferred to an unidentified hospice facility.

Charlie had an rare genetic disorder known as MMDS, which affected his brain and his muscles. He could not move his limbs or breathe on his own.

An effort to help global sexual health charities losing support under the Trump administration has reached a new milestone: $300 million in fundraising.

The Dutch government revealed the new figure on Friday. The "She Decides" initiative — the brainchild of one Dutch official — kicked off earlier this year, and announced $190 million in funding as of early March.

Updated at 1:42 p.m. ET

Charlie Gard, a terminally ill British baby whose parents fought in court to transfer him to the U.S. for treatment, will be moved to a hospice facility to die.

A British judge approved the transfer plan on Thursday, days after Charlie's parents dropped their efforts to get him experimental treatments.

Volunteers at an overdose prevention site in Vancouver, Canada, say they saved the life of a rat named Snuggles after the little rodent overdosed on heroin.

Sarah Blyth, who co-founded the organization behind the prevention site, wrote about the rescue on Twitter. While Snuggles was initially described as a mouse, Blyth tells NPR that the pet is actually a rat.

After President Trump blocked U.S. aid money from supporting any group that provides or "promotes" abortion in other countries, The Netherlands announced it would launch a fundraising initiative to support any affected organizations.

Now, several other countries — including Sweden, Finland, Belgium and Canada — have signaled their participation.

Philippine President Rodrigo Duterte has ordered government agencies to expand access to contraception, especially for poor women. By 2018, he instructs, all poor households in the country should have "zero unmet need for modern family planning."

Duterte's executive order, signed Monday and announced on Wednesday, is the latest development in a long battle over birth control in the majority-Catholic Philippines. It pits the president, who says family planning is critical for reducing poverty, against the country's Supreme Court and Catholic leadership.

Ohio's Legislature has passed a bill that would ban abortion once a fetal heartbeat can be detected, which is typically around six weeks after conception — before many women even realize they're pregnant.

The bill is now sitting on the governor's desk. John Kasich has 10 days to veto the measure; otherwise, it becomes law, reports NPR's Jennifer Ludden.

Jennifer notes that the bill does not include exceptions for rape or incest — the only exception would be if the life of the woman were in danger.

A 14-year-old girl in the U.K. who was dying of cancer won the right to be cryogenically frozen, in a case that's being described as remarkable — and potentially the first of its kind.

The girl wanted to have her body preserved in the hopes that scientists someday would be able to bring her back to life and cure her illness. Her wishes were initially supported by her mother but not her father, which led the girl to seek a judge's intervention to ensure that her mother would decide what would happen to her body.

Updated at 10:45 ET Wednesday

While votes are still being counted, some high-profile ballot initiatives already have returned clear results — including a slew of states opting in favor of medical or recreational marijuana, and several more raising the minimum wage.

You can see our full list of key ballot measures here, or check out a sample of the highlights:

On a gray and rainy day, they poured onto the streets of Polish cities by the thousands. The women wore black, waved black flags and raised black umbrellas overhead — gathering on "Black Monday" to protest a proposed ban on abortion.

In Poland, abortion is already illegal except in cases of rape, incest, danger to the mother's life or irreparable damage to a fetus. The legislature is now proposing an absolute ban, carrying jail time of up to five years for both women and their doctors no matter the circumstances of the abortion, The Associated Press reports.

In the 1960s, the sugar industry funded research that downplayed the risks of sugar and highlighted the hazards of fat, according to a newly published article in JAMA Internal Medicine.

Two Orlando-area hospitals are waiving the medical bills of victims of the Pulse nightclub shooting, praising the community response and saying they want to contribute.

More than 50 people were wounded in the June 12 attack on the Florida gay nightclub, and 49 people died.

Orlando Regional Medical Center has treated 44 victims of the shooting — more than any other hospital. The center's parent company, Orlando Health, says it will not charge victims for their treatment, reports Abe Aboraya of member station WMFE.