Utah becomes 1st state to ban fluoride in drinking water

(WASHINGTON) — A measles case was confirmed in a person who traveled to Washington, D.C., on an Amtrak train, according to the D.C. Department of Health (DC Health).

The person visited multiple locations while contagious, including the southbound Amtrak Northeast Regional 175 Train and Union Station on March 19 as well as a MedStar Urgent Care in Adams Morgan on March 22, DC Health said in a press release on Tuesday.

DC Health said it is currently working to inform people who were at these locations that they may have been exposed.

Health officials are specifying that people who are “not immune” are most at-risk of infection. This includes those who are unvaccinated or who have never contracted measles before.

DC Health did not immediately respond to ABC News’ request for comment.

“DC Public Health has notified Amtrak of a confirmed case of measles in a customer traveling on Amtrak Train 175 from New York to Washington Union Station on Wednesday, March 19,” Amtrak said in a statement on Wednesday. “Amtrak is reaching out directly to customers who were on this train to notify them of possible exposure.”

The New York City Department of Health and Mental Hygiene also released a statement on Wednesday, saying it is “aware” of the confirmed case and the patient’s travel.

“Public Health agencies routinely exchange information when exposures occur in other localities, and we are in communication with the DC Department of Health on this matter,” the statement read in part.

The CDC has confirmed 378 measles cases so far this year in at least 17 states: Alaska, California, Florida, Georgia, Kansas, Kentucky, Maryland, Michigan, New Jersey, New Mexico, New York, Ohio, Pennsylvania, Rhode Island, Texas, Vermont and Washington. This is likely an undercount due to delays in states reporting cases to the federal health agency.

Health officials are encouraging those who have never been vaccinated before to receive the measles, mumps, rubella (MMR) vaccine.

The CDC currently recommends that people receive two vaccine doses, the first at ages 12 to 15 months and the second between 4 and 6 years old. One dose is 93% effective, and two doses are 97% effective, the CDC says. Most vaccinated adults don’t need a booster.

ABC News’ Matt Foster and Othon Leyva contributed to this report.

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(WASHINGTON) — The Centers for Disease Control and Prevention sent a survey on March 6 asking some federally funded researchers to assess how their work aligns with the priorities of President Donald Trump’s administration, according to documents obtained by ABC News.

CDC-funded researchers were asked whether their research would help combat “Christian persecution,” defend women and children against “gender ideology extremism” or help curb illegal immigration.

They were also surveyed about whether their research included any diversity or climate change initiatives — among other questions that roughly align with recent executive orders.

On Friday, the agency clarified that the survey was only applicable to CDC partners doing work outside the United States.

It’s not clear how many researchers received the email, which was sent by the CDC’s Global Health Center.

“Receiving this survey was deeply unsettling. It’s hard not to see it as an attempt to inject politics into scientific research, forcing us to align with ideological priorities rather than urgent public health needs,” said one researcher who received the survey.

Researchers who received the survey also told ABC News that they were concerned their answers would be used to jeopardize ongoing research or could be used to justify further cuts, especially to research conducted abroad.

“I worry about how these responses might be used to justify funding cuts, especially for critical public health initiatives,” one researcher said.

Earlier this week, a similar survey was sent to foreign aid programs supported by the United States Agency for International Development, according to reporting by The New York Times.

The survey comes amid federal firings, budget cuts and grant cuts to federally funded research, though some of those actions have been blocked in court.

Several hundred people gathered in the nation’s capital on March 7 for the Stand Up for Science rally, and there are similar rallies planned in more than 30 other cities.

In 2023, the federal government funded roughly $60 billion in scientific research, according to the Association of American Universities. Prior government-funded research has led to technologies such as MRIs and GPS.

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(WASHINGTON) — Five years ago, the World Health Organization declared the COVID-19 outbreak to be a pandemic, leading to stay at-home orders and shutdowns across the U.S. and world.

The nation looks much different since then, and scientists and researchers have learned a lot about the virus, including how it infects people, the best forms of treatment and what puts someone at risk for long COVID.

There are still many questions, however. Health care professionals are working to find answers, such as how many people have truly died, how long the virus spread undetected in the U.S. and its origins.

“We know this emerged in China, around the city Wuhan. That’s very clear,” Dr. Cameron Wolfe, an infectious diseases specialist and a professor of medicine at Duke University School of Medicine, told ABC News. “We know when [the] medical community identified it, but we don’t know quite how long it was circulating before then. I think it’s caused some of the consternation.”

How many people have died of COVID-19?

As of March 6, at least 1,222,603 Americans have died of COVID-19, according to data from the Centers for Disease Control and Prevention.

The U.S. currently has the highest number of deaths of any country in the world, according to the WHO.

Experts, however, believe the true death toll is higher.

“More than a million people is a tragedy into itself, let’s start with that obvious fact,” Wolfe said. “I think the numbers are really hard to pin down for one key reason.”

Determining the exact cause of death can be complicated, Wolfe explained. Someone could die of COVID pneumonia — a lung infection caused by the virus — or die from a heart attack after contracting COVID.

Another example is an older adult who contracts COVID-19. They may become dehydrated, break a bone — because dehydration negatively impacts bone health — and suffer fatal complications, Wolfe said.

“How you count those outcomes is really important because, to me, that person wouldn’t have had their heart attack or that person wouldn’t have become dehydrated and fallen over and landed in the hospital if not for COVID triggering that event in the first place,” he said. “So, I actually think it’s really important to count those as COVID-associated mortalities, but they’re hard to count. They’re hard to track.”

Globally, more than 7 million people have died due to COVID-19, WHO data shows, although the agency says the pandemic caused an estimated 14.83 million excess deaths around the world in 2020 and 2021.

What is the mechanism behind long COVID

Scientists are not sure what causes long COVID but have identified certain risk factors such as an underlying health condition. Long-COVID symptoms can last for weeks, months or even years and can include — but are not limited to — fever, fatigue, coughing, chest pain, headaches, difficulty concentrating, sleep problems, stomach pain and joint or muscle pain, according to the CDC.

Research has found that patients with long COVID tend to have lower cortisol levels and lower testosterone levels.

“There are several questions that we still do not have answers for. What is the mechanism of the disease? Why do some people get more sick than others?” Dr. Fernando Carnavali, an internal medicine physician and a member of the team at Mount Sinai’s Center for Post-COVID Care, told ABC News.

Carnavali said scientists are using machine learning to study groups of long COVID patients in an attempt to determine the mechanisms that cause the condition.

“Do we have a single answer? Not as of yet, and most likely, perhaps we’ll have more than one answer,” he said.

Carnavali said the mechanism may not be the same for every long COVID patient. Additionally, people may have different symptoms due to different genetic predispositions.

“Some of the deficits that we have five years ago still remain, but I think that we should all understand and be hopeful that … researchers using machine learning will [provide] us some of the answers that we need as clinicians,” he said.

When did COVID enter the United States?

It’s still not exactly clear when the virus first entered the U.S. The first confirmed case in the country was Jan. 20, 2020, in a man in his 30s in Washington state, who developed symptoms after a trip to Wuhan.

However, studies have suggested the virus may have been circulating undetected for months beforehand.

Although the WHO was first notified on Dec. 31, 2019, about the mysterious pneumonia-like illness that originated in Wuhan, experts say it is likely that in an age of global travel, the virus was in the U.S. before then.

“It’s more likely circulated before Jan. 1 [2020]. It doesn’t seem unreasonable, November, December,” Dr. Lisa Olson-Gugerty, an associate teaching professor for Syracuse University and practicing family nurse practitioner in emergency medicine, told ABC News. “COVID masquerades itself as a flu-like illness, upper respiratory-like illness, like many other viral illnesses. It’s not easy to say, ‘Hey, I think this must be a new thing, and I’m going to tell everyone.'”

She went on, “I think it takes a bit of collective time to recognize a new viral strain, and it doesn’t seem unreasonable [there were] cases that could have been recognized as COVID before the date of release of information.”

Where did the virus come from?

There are two theories about where the virus, known as SARS-CoV-2, originated.

At least four U.S. agencies believe the virus was a result of natural transmission and that the virus jumped from animals to humans at a wet market.

The FBI, the CIA and the Department of Energy – the latter with “low confidence” — believe the COVID-19 pandemic “most likely” was the result of a laboratory leak in China.

Additionally, an April 2023 report from Senate Republicans conceded that “both hypotheses are plausible” but that the evidence points to the virus emerging from an accidental lab leak in Wuhan — and there may even have been multiple leaks.

If the virus did come from an animal, there are questions about which species may have spilled the virus over from animals to humans.

“I’ve seen a lot of conflicting information,” Olson-Gugerty said. “Did it come from a bat? Did it get into raccoon dogs or civet cats? Or was it a lab-created virus in Wuhan, China There does seem to be a jury that’s out.”

Wolfe said we may never know the true origins of SARS-CoV-2, but trying to answer the question helps scientists and public health professionals learn how to mitigate the spread so a pandemic — or even widespread illness — doesn’t happen again.

“This was the same question that happened during the Ebola pandemic, when we had to say, ‘Where did this come from? How can we educate people to minimize this future risk?'” he said. “It was important to examine where COVID-19 came from to try and put things in place that would stop that happening.”

He added, “We certainly, I would say, have better safety mechanisms now in place … so there are some good things that have come out of this.”

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