Science
Lethal algae bloom is over, but sickened marine mammals aren't safe yet
It was one of the largest, longest and most lethal harmful algae blooms in Southern California’s recorded history, claiming the lives of hundreds of dolphins and sea lions between Baja California and the Central Coast. And now, finally, it’s over.
Levels of toxic algae species in Southern California coastal waters have declined in recent weeks below thresholds that pose a threat to marine wildlife, according to the Southern California Coastal Ocean Observing System, or SCCOOS, which monitors algae blooms.
Although this provides a much-needed respite for marine mammals and the people working to save them from neurotoxin poisoning, scientists warned that the coastal ecosystem isn’t in the clear yet.
Just as January’s firestorms struck well outside Southern California’s typical fire season, this explosion of harmful algae appeared earlier in the year than have previous blooms. Further outbreaks are still possible before the year is up, said Dave Bader, a marine biologist and the chief operations and education officer for the Marine Mammal Care Center in San Pedro.
“It’s definitely over, but we still have the work of rehabilitating the [animals] that we have saved,” Bader said Wednesday. “And we’re not out of the woods with this year at all.”
Bader was among a group of ocean specialists who gathered at the AltaSea complex at the Port of Los Angeles to brief Mayor Karen Bass on the coastal effects of January’s fires.
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That disaster didn’t cause the algae blooms. This is the fourth consecutive year such outbreaks have occurred along the Southern California coast, fueled by an upwelling of nutrient-rich waters from the deep ocean.
Yet multiple research teams are currently investigating whether the surge of additional runoff into the sea resulting from the firestorms may have contributed to the recent bloom’s intensity.
No data on the subject are available yet. But given the relationship between nutrients and harmful algae species, Mark Gold of the Natural Resources Defense Council said he would not be surprised if the fires played a role in this year’s severity.
“As a scientist who’s been looking at impacts of pollution on the ocean for my whole career, … one would expect that [fire runoff] is also having impacts on harmful algal blooms, from the standpoint of the intensity of the blooms, the scope, the scale, etc.,” said Gold, the organization’s director of water scarcity solutions. “We’ll find that out when all this analysis and research is completed.”
In terms of animal mortality, this year’s bloom was the worst since 2015-16 outbreak that killed thousands of animals between Alaska and Baja California, said SCCOOS director Clarissa Anderson of UC San Diego’s Scripps Institution of Oceanography.
Four different algae species were present this year. The two most dangerous produce powerful neurotoxins that accumulate in the marine food chain: Alexandrium catenella, which produces saxitoxin, and Pseudo-nitzschia australis, which produces domoic acid.
The toxins accumulate in filter-feeding fish, and then poison larger mammals who gobble up the fish in mass quantities. (This is why the blooms don’t pose the same health risks to humans — very few people eat up to 40 pounds of fish straight from the sea each day.)
Beginning in February, hundreds of dolphins and sea lions started washing up on California beaches, either dead or suffering neurotoxin poisoning symptoms such as aggression, lethargy and seizures. A minke whale in Long Beach Harbor and a gray whale that stranded in Huntington Beach also succumbed to the outbreak. Scientists believe countless more animals died at sea.
The outbreak was more lethal than those in recent years, Bader said, and veterinarians were able to save fewer animals than they have in the past.
Researchers are still grappling with the catastrophe’s full impact on marine mammal species. The outbreak was particularly deadly for breeding females. California sea lions typically give birth in June after an 11-month gestation. At the blooms’ peak, “they were actively feeding for two,” Bader said.
Domoic acid crosses the placenta. None of the pregnant animals the center rescued delivered live babies, he said.
“We don’t really know what the environmental impact, long term, is of [blooms] four years in a row, right during breeding season,” Bader said. “The full impact of this is going to be hard to know, especially at a time when research budgets are being cut.”
As climate change has shifted the timing and intensity of the strong wind events that drive upwellings, “we’re coming into a future where we unfortunately have to expect we’ll see these events with recurring frequency,” Bader told Bass at the roundtable. “The events that drove the fires are the events that drove the upwelling.”
Science
Department of Education finds San Jose State violated Title IX regarding transgender volleyball player
The U.S. Department of Education has given San José State 10 days to comply with a list of demands after finding that the university violated Title IX concerning a transgender volleyball player in 2024.
A federal investigation was launched into San José State a year ago after controversy over a transgender player marred the 2024 volleyball season. Four Mountain West Conference teams — Boise State, Wyoming, Utah State and Nevada-Reno — each chose to forfeit or cancel two conference matches to San José State. Boise State also forfeited its conference tournament semifinal match to the Spartans.
The transgender player, Blaire Fleming, was on the San José State roster for three seasons after transferring from Coastal Carolina, although opponents protested the player’s participation only in 2024.
In a news release Wednesday, the Education Department warned that San José State risks “imminent enforcement action” if it doesn’t voluntarily resolve the violations by taking the following actions, not all of which pertain solely to sports:
1) Issue a public statement that SJSU will adopt biology-based definitions of the words “male” and “female” and acknowledge that the sex of a human — male or female — is unchangeable.
2) Specify that SJSU will follow Title IX by separating sports and intimate facilities based on biological sex.
3) State that SJSU will not delegate its obligation to comply with Title IX to any external association or entity and will not contract with any entity that discriminates on the basis of sex.
4) Restore to female athletes all individual athletic records and titles misappropriated by male athletes competing in women’s categories, and issue a personalized letter of apology on behalf of SJSU to each female athlete for allowing her participation in athletics to be marred by sex discrimination.
5) Send a personalized apology to every woman who played in SJSU’s women’s indoor volleyball from 2022 to 2024, beach volleyball in 2023, and to any woman on a team that forfeited rather than compete against SJSU while a male student was on the roster — expressing sincere regret for placing female athletes in that position.
“SJSU caused significant harm to female athletes by allowing a male to compete on the women’s volleyball team — creating unfairness in competition, compromising safety, and denying women equal opportunities in athletics, including scholarships and playing time,” Kimberly Richey, Education Department assistant secretary for civil rights, said.
“Even worse, when female athletes spoke out, SJSU retaliated — ignoring sex-discrimination claims while subjecting one female SJSU athlete to a Title IX complaint for allegedly ‘misgendering’ the male athlete competing on a women’s team. This is unacceptable.”
San José State responded with a statement acknowledging that the Education Department had informed the university of its investigation and findings.
“The University is in the process of reviewing the Department’s findings and proposed resolution agreement,” the statement said. “We remain committed to providing a safe, respectful, and inclusive educational environment for all students while complying with applicable laws and regulations.”
In a New York Times profile, Fleming said she learned about transgender identity when she was in eighth grade. “It was a lightbulb moment,” she said. “I felt this huge relief and a weight off my shoulders. It made so much sense.”
With the support of her mother and stepfather, Fleming worked with a therapist and a doctor and started to socially and medically transition, according to the Times. When she joined the high school girls’ volleyball team, her coaches and teammates knew she was transgender and accepted her.
Fleming’s first two years at San José State were uneventful, but in 2024 co-captain Brooke Slusser joined lawsuits against the NCAA, the Mountain West Conference and representatives of San José State after alleging she shared hotel rooms and locker rooms with Fleming without being told she is transgender.
The Education Department also determined that Fleming and a Colorado State player conspired to spike Slusser in the face, although a Mountain West investigation found “insufficient evidence to corroborate the allegations of misconduct.” Slusser was not spiked in the face during the match.
President Trump signed an executive order a year ago designed to ban transgender athletes from competing on girls’ and women’s sports teams. The order stated that educational institutions and athletic associations may not ignore “fundamental biological truths between the two sexes.” The NCAA responded by banning transgender athletes.
The order, titled “Keeping Men Out of Women’s Sports,” gives federal agencies, including the Justice and Education departments, wide latitude to ensure entities that receive federal funding abide by Title IX in alignment with the Trump administration’s view, which interprets a person’s sex as the gender they were assigned at birth.
San José State has been in the federal government’s crosshairs ever since. If the university does not comply voluntarily to the actions listed by the government, it could face a Justice Department lawsuit and risk losing federal funding.
“We will not relent until SJSU is held to account for these abuses and commits to upholding Title IX to protect future athletes from the same indignities,” Richey said.
San José State was found in violation of Title IX in an unrelated case in 2021 and paid $1.6 million to more than a dozen female athletes after the Department of Justice found that the university failed to properly handle the students’ allegations of sexual abuse by a former athletic trainer.
The federal investigation found that San José State did not take adequate action in response to the athletes’ reports and retaliated against two employees who raised repeated concerns about Scott Shaw, the former director of sports medicine. Shaw was sentenced to 24 months in prison for unlawfully touching female student-athletes under the guise of providing medical treatment.
The current findings against San José State came two weeks after federal investigators announced that the California Community College Athletic Assn. and four other state colleges and school districts are the targets of a probe over whether their transgender participation policies violate Title IX.
The investigation targets a California Community College Athletic Assn. rule that allows transgender and nonbinary students to participate on women’s sports teams if the students have completed “at least one calendar year of testosterone suppression.”
Also, the Education Department’s Office of Civil Rights has launched 18 Title IX investigations into school districts across the United States on the heels of the Supreme Court hearing oral arguments on efforts to protect women’s and girls’ sports.
Science
The share of Americans medically obese is projected to rise to almost 50% by 2035
On Wednesday, a new study published in JAMA by researchers at the University of Washington in Seattle projected that by 2035, nearly half of all American adults, about 126 million individuals, will be living with obesity. The study draws on data from more than 11 million participants via the U.S. Centers for Disease Control and Prevention’s National Health and Nutrition Examination and Behavioral Risk Factor Surveillance System, and from the independent Gallup Daily Survey.
The projections show a striking increase in the prevalence of obesity over the past few decades in the U.S. In 1990, only 19.3% of U.S. adults were obese, according to the study. That figure more than doubled to 42.5% by 2022, and is forecast to reach 46.9% by 2035.
The study highlights significant disparities across states, ages, and racial and ethnic groups. While every state is expected to see increases, the sharpest rises are projected for Midwestern and Southern states.
For example, nationwide, by 2035, the study projects that 60% (11.5 million adults) of Black women and 54% (14.5 million) of Latino women will suffer from obesity when compared with 47% (36.5 million) of white women. Similarly, 48% (13.2 million) of Latino men will suffer from the disease compared with 45% (34.4 million) of white men and 43% (7.61 million) of Black men.
The findings say California will see similar trends in gender and racial disparities. The study projects that by 2035, obesity rates among Latino and Black women in California will reach nearly 60%, compared with nearly 40% for their white counterparts. Additionally, Latino men in California could see rates over 50%, compared with nearly 40% for their white counterparts.
“These numbers are not surprising, given the systemic inequalities that exist,” in many California cities, said Dr. Amanda Velazquez, director of obesity medicine at Cedars-Sinai Hospital, pointing to economic instability, chronic stress and the car-dependency of Los Angeles and other California metro areas. “There are challenges for access to nutritious foods, depending on where you’re at in the city,” Velazquez said. ”There’s also disparities in the access to healthcare, especially to treatment for obesity.”
That’s recently become more of a challenge, since changes in Medi-Cal plans that went into effect at the beginning of this year mean obesity medication and treatment are no longer covered for hundreds of thousands of low-income Californians. “To take that away is devastating,” said Velazquez.
Despite these disparities, California is projected to fare better than most other states, with its rates of obesity growing more slowly than the national average.
“There are statewide and local policies that influence food, nutrition and social determinants of health for individuals,” said Velazquez.
Church pointed to measures such as SB 12 and SB 677, passed in the mid 2000s, which set strict nutritional standards for schools, existing menu labeling laws at both the state and federal levels requiring restaurants to provide nutritional facts on menu items, and cities like Berkeley and Oakland imposing local soda taxes as key local and statewide initiatives to keep obesity at bay.
To keep up this momentum, both doctors stressed that California must continue to strengthen school nutrition standards, expand transportation infrastructure that encourages walking instead of driving, maintain and expand economic disincentives to unhealthy foods, such as beverage taxes, and address food deserts by incentivizing new grocery stores and farmers’ markets in underserved neighborhoods.
Future efforts, Church says, should prioritize the Black and Latino populations identified by the study as most affected.
Science
Pediatricians urge Americans to stick with previous vaccine schedule despite CDC’s changes
For decades, the American Academy of Pediatrics and the U.S. Centers for Disease Control and Prevention spoke with a single voice when advising the nation’s families on when to vaccinate their children.
Since 1995, the two organizations worked together to publish a single vaccine schedule for parents and healthcare providers that clearly laid out which vaccines children should get and exactly when they should get them.
Today, that united front has fractured. This month, the Department of Health and Human Services announced drastic changes to the CDC’s vaccine schedule, slashing the number of diseases that it recommends U.S. children be routinely vaccinated against to 11 from 17. That follows the CDC’s decision last year to reverse its recommendation that all kids get the COVID-19 vaccine.
On Monday, the AAP released its own immunization guidelines, which now look very different from the federal government’s. The organization, which represents most of the nation’s primary care and specialty doctors for children, recommends that children continue to be routinely vaccinated against 18 diseases, just as the CDC did before Robert F. Kennedy Jr. took over the nation’s health agencies.
Endorsed by a dozen medical groups, the AAP schedule is far and away the preferred version for most healthcare practitioners. California’s public health department recommends that families and physicians follow the AAP schedule.
“As there is a lot of confusion going on with the constant new recommendations coming out of the federal government, it is important that we have a stable, trusted, evidence-based immunization schedule to follow and that’s the AAP schedule,” said Dr. Pia Pannaraj, a member of AAP’s infectious disease committee and professor of pediatrics at UC San Diego.
Both schedules recommend that all children be vaccinated against measles, mumps, rubella, polio, pertussis, tetanus, diphtheria, Haemophilus influenzae type B (Hib), pneumococcal disease, human papillomavirus (HPV) and varicella (better known as chickenpox).
AAP urges families to also routinely vaccinate their kids against hepatitis A and B, COVID-19, rotavirus, flu, meningococcal disease and respiratory syncytial virus (RSV).
The CDC, on the other hand, now says these shots are optional for most kids, though it still recommends them for those in certain high-risk groups.
The schedules also vary in the recommended timing of certain shots. AAP advises that children get two doses of HPV vaccine starting at ages 9 to12, while the CDC recommends one dose at age 11 or 12. The AAP advocates starting the vaccine sooner, as younger immune systems produce more antibodies. While several recent studies found that a single dose of the vaccine confers as much protection as two, there is no single-dose HPV vaccine licensed in the U.S. yet.
The pediatricians’ group also continues to recommend the long-standing practice of a single shot combining the measles, mumps and rubella (MMR) and varicella vaccines in order to limit the number of jabs children get. In September, a key CDC advisory panel stocked with hand-picked Kennedy appointees recommended that the MMR and varicella vaccines be given as separate shots, a move that confounded public health experts for its seeming lack of scientific basis.
The AAP is one of several medical groups suing HHS. The AAP’s suit describes as “arbitrary and capricious” Kennedy’s alterations to the nation’s vaccine policy, most of which have been made without the thorough scientific review that previously preceded changes.
Days before AAP released its new guidelines, it was hit with a lawsuit from Children’s Health Defense, the anti-vaccine group Kennedy founded and previously led, alleging that its vaccine guidance over the years amounted to a form of racketeering.
The CDC’s efforts to collect the data that typically inform public health policy have noticeably slowed under Kennedy’s leadership at HHS. A review published Monday found that of 82 CDC databases previously updated at least once a month, 38 had unexplained interruptions, with most of those pauses lasting six months or longer. Nearly 90% of the paused databases included vaccination information.
“The evidence is damning: The administration’s anti-vaccine stance has interrupted the reliable flow of the data we need to keep Americans safe from preventable infections,” Dr. Jeanne Marrazzo wrote in an editorial for Annals of Internal Medicine, a scientific journal. Marrazzo, an infectious disease specialist, was fired last year as head of the National Institute of Allergy and Infectious Diseases after speaking out against the administration’s public health policies.
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