Flu cases on the rise amid holiday travel, gatherings, latest CDC data shows
Stock photo of a sick child. Natalia Lebedinskaia/STOCK PHOTO/Getty Images
(NEW YORK) — Flu activity is increasing across the U.S. amid holiday travel and gatherings, according to the latest data the Centers for Disease Control and Prevention.
The CDC estimates there have been at least 4.6 million illnesses, 49,000 hospitalizations and 1,900 deaths from flu this season so far, according to data updated as of Dec. 19, and experts expect these numbers will continue to rise.
Public health experts previously told ABC News that many of this season’s cases are linked to a new flu strain called subclade K — a variant of the H3N2 virus, which is itself a subtype of influenza A — that has been circulating since the summer in other countries.
Of the 163 samples of H3N2 viruses collected since Sept. 28 and genetically characterized, 89% were subclade K, according to the CDC.
Additionally, three pediatric flu deaths have been reported so far this season, according to an ABC News tally.
Last season, the U.S. saw 288 children die from flu, which is the same number of children who died during the 2009 H1N1 pandemic. About 90% of kids who died from flu last year were not vaccinated, a CDC study published earlier this year found.
Meanwhile, New York state is reporting the highest number of flu cases it has ever recorded in a single week.
“The emergency room has been busy, and we’ve been following these numbers,” Dr. Darien Sutton, a board-certified emergency medical physician and ABC News medical correspondent, told “Good Morning America” on Monday. “Just a note, national numbers typically lag during the holiday, but state health department numbers are giving us insight to just how severe this flu season is.”
A total of 71,123 flu cases were reported for the week ending Dec. 20, according to the New York State Department of Health (NYSDOH). This marks the highest number of flu cases in a single week since it became mandatory for states to report in 2004.
This is also 38% higher compared to the previous week which saw 51,365 infections reported, bringing the total flu cases reported in the state to 189,312.
Hospitalizations climbed by 63% in the most recent week, increasing from 2,251 to 3,666 weekly admissions, according to data from NYSDOH.
Sutton said it’s important to understand that flu is present and to take steps to reduce risk, including masking, washing hands with soap and water and getting the flu vaccine.
Currently, the CDC recommends that everyone aged 6 months and older, with rare exceptions, get a flu vaccine.
The federal health agency states on its website that getting an annual flu shot prevents millions of illnesses and flu-related doctors’ visits every year and is especially important for those at higher risk of serious complications.
“The flu is so much more than a simple cold. I am treating it in the emergency room,” Sutton said. “Understand that people are coming in feeling like they are so sick that it has to be something else than the flu.”
Sutton noted that he is seeing more people in the emergency room and more people being hospitalized but that the disease itself is not more severe, adding “it’s not like a super flu.”
(NEW YORK) — The American Red Cross declared a severe emergency blood shortage on Monday and called on people to donate.
The humanitarian organization, which says it’s the largest supplier of blood products for hospitals and for patient need in the U.S., said the demand from hospitals has outpaced the available supply of blood.
Dr. Courtney Lawrence, divisional chief medical officer at American Red Cross, told ABC News that almost one-third of the organization’s blood stores across the country have been depleted due to hospital need.
Lawrence said inclement winter weather, which has forced more than 400 Red Cross blood drives around the U.S. to be canceled, is among the reasons that donations are down.
Additionally, the U.S. is experiencing a moderately severe flu season, with some states reporting record levels of weekly cases and hospitalizations.
“That can overwhelm our health care system, and it can also mean that donors may not be feeling well enough to come in to donate or may be busy taking care of their loved ones who are sick,” Lawrence said.
When blood supplies are low, it can affect the ability to treat patients in need including trauma patients, chemotherapy patients with underlying blood disorders, those living with sickle cell disease and others, Lawrence said. She called on Americans to donate if they’re able to.
Reihaneh Hajibeigi, 34, from Austin, Texas, was one of those patients in need, telling ABC News that blood transfusions saved her life.
Hajibeigi said she lost a lot of blood while giving birth to her first child in 2023, and that the hospital gave her some blood and sent her home with her husband and newborn daughter.
“After about a couple weeks, things started to not be so great,” she told ABC News. “What I assumed was just being new mom tired really turned into fatigue. I was losing a lot of blood. I was starting to just not feel so great”
When Hajibeigi went back to the doctor two and a half weeks after giving birth, she said medical staff discovered she had retained a roughly four-centimeter piece of placenta on her uterine wall that was becoming toxic.
Hajibeigi said she underwent a procedure the next morning and began hemorrhaging during the operation, losing about 40% of her total blood volume.
In the recovery room, Hajibeigi said she started to crash again from the loss of blood and doctors raced to give her a blood transfusion.
“Fortunately, they had the blood on hand. They were able to get it into my system and basically brought me back to life,” she said.
Hajibeigi said she hopes that by sharing her story, she can encourage people to donate if they’re able, especially knowing there’s a chance their donation can help someone in need.
“It just made it that much clearer how vital blood donations are and how much sometimes we take it for granted, just assuming that the blood supply was always going to be intact,” she said. “And in that case, I needed the blood. Wonderful.”
“It’s a scary thought to think what if the blood product that I needed wasn’t there?” Hajibeigi said. “Then what would have happened?”
The Environmental Protection Agency (EPA) headquarters is seen on February 13, 2026 in Washington, DC. (Michael M. Santiago/Getty Images)
(WASHINGTON) — The Trump administration walked back an Obama-era environmental decision that has been the legal basis for establishing federal regulation of greenhouse gas emissions.
The Environmental Protection Agency (EPA) said on Thursday it was rescinding the 2009 endangerment finding, which determined that six key greenhouse gases threaten human health and welfare.
The regulations that resulted cover everything from vehicle tailpipe emissions to the release of greenhouse gases from power plants and other significant emission sources.
President Donald Trump called the move “the single largest deregulatory action in American history” and said the repealed finding had “no basis in fact” and “no basis in law.”
The endangerment finding stemmed from the 2007 Supreme Court decision Massachusetts v. EPA, which held that the EPA could regulate greenhouse gases from motor vehicles under the 1970 Clean Air Act because those gases are air pollutants.
Some environmental scientists disagree, telling ABC News that the rescission is concerning and could have major implications for health. They add that decades of research has shown the impact climate change has on human health.
“The evidence is so overwhelming,” Dr. Ana Navas-Acien, chair of the department of environmental health sciences at Mailman School of Public Health at Columbia University, told ABC News.
“The scientific evidence showing the connection between greenhouse emissions, climate change and then the related health effects — it’s massive, it’s substantial, it has been reviewed by independent organizations,” she said. “So, the fact that this body of evidence has become so well established, it just speaks to the level of rigorous science that has been done.”
How greenhouse gases, climate change impact health
Research has shown that greenhouse gases — such as carbon dioxide and nitrous oxide — drive climate change, and, in turn, can harm human health by exposing people to events including wildfire smoke, extreme heat, flooding and waterborne diseases.
For example, rising temperatures have direct harms on health by increasing risk of dehydration and causing more stress on the heart.
During heat waves, the risk of death from heart attack increases by 64%, according to a 2024 study from researchers at Yale School of the Environment.
Additionally, a 2025 study from Yale School of Public Health found that between 2000 and 2020, there were more than 3,400 preventable deaths in the contiguous U.S. due to high temperatures.
The World Health Organization has warned there will be an estimated 250,000 additional deaths around the world annually from 2030 to 2050 due to climate change-related heat exposure.
“We have recent studies showing heat exposure can lead to heart attack events … and it goes beyond just the cardiovascular system,” Kai Chen, an associate professor of epidemiology at Yale School of Public Health and faculty director of the Yale Center on Climate Change and Health, told ABC News. “It goes beyond these kinds of physical conditions or physical health, [also] impacting our mental health.”
High temperatures can also negatively impact the quality and quantity of sleep, which can raise levels of cortisol in the body.
Studies have also shown that extreme heat can exacerbate conditions such as depression, anxiety and suicide ideation. For the latter, a 2023 meta-analysis found that even a slight bump in the average monthly temperature can lead to increases in suicide and suicidal behavior.
“So, really, heat can lead to a broad spectrum of diseases,” Chen added.
In recent decades, wildfires in the western U.S. have become larger, more intense, and more destructive due to a combination of factors, including human-amplified climate change and rapid urbanization, according to the federal government’s Fifth National Climate Assessment.
The same report found that these fires are worsening air quality in many part of the country due to wildfire smoke, which is a mixture of gases, water vapor, air pollutants and fine particulate matter. The latter, known as PM2.5, is at least 30 times smaller in diameter than a human hair.
Experts say these particles are of concern because they are too small to be seen with the naked eye and can easily enter the nose and throat. They can travel to the lungs and even circulate in the bloodstream.
PM2.5 can cause both short-term health effects, even for healthy people, including irritation of the eyes, nose and throat; coughing, sneezing; and shortness of breath and long-term effects such as worsening of conditions such as asthma, heart disease or chronic obstructive pulmonary disease flare-ups.
“Recent evidence has shown that the fine particulate matter in the air can also impact dementia and cognitive function,” Chen said. “It can also affect birth outcomes, leading to pre-term birth and low birth weight. So, air pollution is a major risk factor.”
Regulating fossil fuel combustion reduced PM2.5-related deaths by approximately 54% from 1990 to 2010, according to 2018 joint study from researchers in the U.S. and China.
Short- and long-term implications
Navas-Acien believes that, in the short-term, the rescinding of the endangerment finding will lead to higher pollution levels.
“Higher pollution levels, if we allow that to happen, that means more pollutants in the air that we breathe, in the water that we drink, in the food that we eat,” she said. “And that’s going to result in a higher burden of chronic diseases and even not just chronic disease, but also like heart attacks.”
Research has shown that in the days following an increased level of air pollutants, there are more visits to emergency rooms and hospital admissions for cardiorespiratory events, according to Navas-Acien.
“So that tells you that the impacts of pollution, in the short term, are very rapid,” she added.
In the absence of federal protections, Navas-Acien and Chen said state and local leaders can take actions to reduce greenhouse gas emissions and improve air quality.
On the individual level, to protect yourself, the experts recommend frequently checking the air quality in your area, wearing a mask if air pollution levels are high and supporting the creation of urban green spaces to combat climate change.
Chen said the EPA rescinding the endangerment finding is “very concerning” because “the scientific evidence has not become weaker, but actually became much stronger, showing the health harms from the climate change stirring from the greenhouse gas emissions. This rollback of policy will actually be threatening millions of Americans’ lives.”
“Climate change is impacting our health right now,” Chen continued. “It’s not a political debate. It is science and the science is clear. We need to take action.”
Demonstrators participate in a rally and march during an “ICE Out” day of protest on January 23, 2026 in Minneapolis, Minnesota. Community leaders, faith leaders and labor unions have urged Minnesotans to participate in what they are calling a “day of action” as hundreds of local businesses are expected to close during a statewide general strike held in protest against immigration enforcement operations in the region. (Stephen Maturen/Getty Images)
(NEW YORK) — Over the last several days, many Americans have seen upsetting, and often violent, images and videos of protests in Minneapolis amid a flood of ICE agents entering the city for a federal immigration enforcement operation.
Research has shown that images of extreme violence can impact mental health, increasing symptoms of anxiety and depression.
Among the videos and images that circulated widely in recent weeks have been the fatal shootings of two U.S. citizens involving federal agents just 17 days apart: Renee Good and Alex Pretti.
Psychologists and psychiatrists told ABC News that witnessing a death can add an extra level of distress for some people and lead to long-lasting consequences.
Symptoms of anxiety and depression Studies have shown the symptoms of depression and anxiety can increase when exposed to negative news.
One 2011 study from the University of Sussex in Brighton, U.K., found that people had worsened mood and anxiety symptoms after just 14 minutes of negative news consumption.
Another 2022 study from Rutgers University, focused on COVID-19 news, found that greater daily exposure to news about the virus was linked to higher same-day and next-day worry about the pandemic as well as feelings of hopelessness and general worry.
Dr. Pierluigi Mancini, a psychologist and interim president and CEO of the nonprofit Mental Health America, told ABC News that witnessing any kind of violence whether through news, on social media or in person can lead to psychological effects
“So, people will experience fear, they’ll experience hypervigilance, they’ll experience emotional exhaustion, and they will have effects on their mental health,” he said.
Mancini added that witnessing violent events can activate the body’s “fight-or-flight response” which can include symptoms such as rapid heart rate, shallow breathing, nausea, irritability and difficulty concentrating, especially when the events happen in one’s own community.
“So, the individuals that are on site where they are witnessing these effects in their neighborhoods get affected at a much higher level, but even those millions more that end up watching it on social media or traditional news sites also have those experiences,” he said.
Witnessing deaths may be especially traumatic Research has shown that mental health impacts are even more profound when someone’s unexpected death is witnessed and shared.
A May 2021 article looked at emotional and mental health impacts after the death of George Floyd, an unarmed Black man who was killed in Minneapolis in 2020 after a white police officer knelt on his neck.
The team analyzed Gallup poll data and found that in the week following Floyd’s death, more than one-third of respondents reported feelings of anger and sadness.
Researchers found a 1.5-fold increase in feelings of anger and a 1.3-fold increase in feelings of sadness compared to poll data for the four weeks preceding Floyd’s death. Increases were seen despite already elevated levels of anger and sadness due to the COVID-19 pandemic.
Johannes Eichstaedt, co-author of the study and an assistant professor in psychology at Stanford University, told ABC News he sees some similarities between the death of Floyd and the deaths of Good and Pretti, all of which occurred in Minneapolis.
He said there is scientific literature about linked fate, or the sensation someone has that a horrible event could have happened to them or someone they know.
“There is a very real fear response in the human body with lots of physiological consequences that are very real and when something like this happens and it’s recorded like this and then it traumatizes more or less everybody who watches this,” Eichstaedt said. “The problem is not that these things are getting captured in a video. The problem is that these things happen.”
Dr. Anthony Feinstein, a professor of psychiatry at the University of Toronto, told ABC News that witnessing a death can be distressing to anyone, but that it is important to determine when the stress becomes pathological.
“I think any individual with a moral compass would be distressed by seeing someone die like this on television,” he said. “It’s a very distressing thing to witness. And to feel momentary dismay and stress and sadness or anxiety in response to it strikes me as a normal human response to an abnormal event. Where it becomes problematic is when that stress and that distress doesn’t go away, when it lingers.”
Experts said witnessing deaths on the news, such as what occurred in Minneapolis, can elevate the level of potential mental health impacts, especially among those who are most vulnerable.
“It is extremely traumatic to see someone die,” Mancini said. “Once that sinks in that you witnessed someone lose their life, especially in a violent situation. It’s always traumatic even if you’re next to a loved one who’s passing and you’re expecting it, but when it’s unexpected and when it is violent, it is extremely difficult to watch and to process.”
Mancini said some people may be desensitized to violence, but others can be severely impacted. Witnessing violence can violate a person’s feeling of safety and stability, he said.
“In Minnesota, many people are experiencing that escalating stress,” he said. “They’re experiencing that fear, that violence and uncertainty in their communities. So, it’s gonna make you question everything that you were taught when you were growing up.”
How to protect mental health For those who are experiencing mental health impacts, experts say there are steps people can take to protect their mental health.
Rather than avoiding the news altogether, Mancini said people can purposely limit the time they spend watching news coverage.
He added that watching the news is important to remain informed, but that it is just as important to have intentional engagement.
“So, for example, it is as simple as maybe … I will watch the news two times a day, and when I’m watching this news, I’m going to set a timer,” he said. “I’m gonna limit the time that I’m to be watching this news. That is the healthy thing to do.”
To limit mental health impacts, people can also take action by getting involved with a group focused on the issues they are most passionate about or joining an affinity group, which are supportive communities of people who share a common identity, experts said.
Feinstein said having psychosocial supports can help people maintain mental well-being and allow them to be more vulnerable as well.
“Peer support is important and there is literature out there that peer support is comforting and it’s protective and it’s helpful when it comes to managing situations like this,” Feinstein said. “Obviously you want to keep your responses within the letter of the law … but being part of a support group is helpful.”
Feinstein added that, in stressful times, it’s important for people to devote sufficient time to things that are healthy and meaningful in their lives, whether it be friendships, hobbies or interests.
“And, by the way, don’t feel guilty by doing it,” he said. “That’s really important. People feel, ‘Well, I’ve got a good life, and I feel guilty that I can go to the cinema and theater with other people.’ No, it’s really important that you hold on to those good positive things, because that’s how you maintain your mental well-being.”
