In a major development, AHIP (formerly America's Health Insurance Plans), the insurance company trade group, announced that it will continue to cover updated COVID vaccines and flu vaccines through the end of 2026. 

The announcement comes just before the Centers for Disease Control and Prevention's (CDC's) Advisory Committee on Immunization Practices (ACIP) is set to meet beginning tomorrow to discuss the use of and recommendations for those vaccines. 

The COVID mRNA vaccines are expected to be targeted during the upcoming meetings, as Department of Health and Human Services Secretary Robert F. Kennedy Jr. has appointed several anti–COVID mRNA vaccine activists to the committee.

No cost-sharing for patients

AHIP's statement says all ACIP-recommended immunizations as of September 1, 2025, including updated seasonal COVID-19 and flu shots, will be covered with no cost-sharing for patients through the end of 2026. 

 The evidence-based approach to coverage of immunizations will remain consistent.

"Health plan coverage decisions for immunizations are grounded in each plan's ongoing, rigorous review of scientific and clinical evidence, and continual evaluation of multiple sources of data," AHIP said. "While health plans continue to operate in an environment shaped by federal and state laws, as well as program and customer requirements, the evidence-based approach to coverage of immunizations will remain consistent."

Today in its weekly update, the Centers for Disease Control and Prevention (CDC) said there are 1,491 confirmed measles cases in the United States this year in 42 jurisdictions, an increase of 37 cases in the past week. 

Eighty-six percent of cases have been linked to one of 38 reported outbreaks, and roughly 12% of all case-patients have required hospitalization. 

Last year the country recorded only 285 measles cases, and 2025 has been the worst year for measles activity in the United States since the virus was officially declared to be eliminated in 2000. 

New case in Chicago area

In the Chicago area, Cook County has reported its second suburban case of measles this year, in an unvaccinated 4-year-old child who had traveled internationally and may have exposed others at O'Hare International Airport. So far Illinois has had 11 measles cases this year, compared with 67 for all of 2024.

This case is a serious reminder that vaccination is not just about individual protection, it’s a critical community responsibility

"This case is a serious reminder that vaccination is not just about individual protection, it’s a critical community responsibility," said Chicago Department of Public Health Commissioner Simbo Ige, MD, MPH. 

In Utah, wastewater surveillance has detected measles in samples from the Bear River Health District. State officials said wastewater sampling suggests at least one person with measles was in the area within the past week. 

Moderna yesterday announced promising preliminary immunogenicity data for its 2025-26 formulation of Spikevax COVID-19 vaccine, which targets the LP.8.1 variant.

In a press release, the company said the data are from an ongoing phase 4 clinical trial to gauge the safety, tolerability, and immune response to the updated Spikevax vaccine. The findings come ahead of a September 19 Centers for Disease Control and Prevention (CDC) meeting of the Advisory Committee on Immunization Practices, which is slated to discuss and vote on vaccine recommendations.

Spikevax prompted a greater than eight-fold increase in neutralizing antibodies against LP.8.1 in people ages 12 through 64 years with at least one underlying condition that puts them at high risk for severe COVID complications, as well as adults aged 65 and older.

Pfizer and BioNTech last week announced strong phase 3 clinical data for their updated COVID vaccine.

Safety profile consistent with earlier studies

Moderna said the safety profile is consistent with that of earlier studies, with findings revealing no new safety concerns.

Recent CDC data show that that wastewater SARS-CoV-2 detections are high and that LP.8.1 and related strains XFG and NB.1.8.1 continue to dominate. “This preliminary analysis confirms Moderna's updated COVID-19 vaccine is a strong match to today's top circulating strains in the U.S.,” the company said.

The latest clinical findings support preclinical data that supported the Food and Drug Administration (FDA) approval of the updated Spikevax formulation. 

• In its latest assessment of the public health threat from SARS-CoV-2, the World Health Organization (WHO) changed its risk level from high to moderate, though it noted that confidence in its assessment is low. The step-down in risk stems from declining hospitalizations and deaths since 2022 due to high population immunity and improved clinical management. The group added that most viruses are members of the Omicron JN.1 lineage, which has shown immune escape but not increased illness severity. It warned that a gap in surveillance data and genomic sequencing, especially from low- and middle-income countries, undermines a more accurate risk assessment. The WHO emphasized that COVID continues to circulate alongside other respiratory viruses and estimated that post-COVID symptoms occur in about 6% of people who have symptomatic infections. Low vaccine uptake amid continued virus evolution are other factors that contribute to risk-estimate uncertainty and required continued vigilance.
• The California Department of Public Health (CDPH) today announced its official respiratory virus immunization recommendations in accordance with its West Coast Health Alliance partners in Oregon, Washington, and Hawaii. In a statement, the CDPH said California Gov. Gavin Newsom this week signed a bill into law ensuring that the state’s vaccine recommendations are guided by evidence-based scientific recommendations from trusted medical groups such as the American Academy of Pediatrics, the American College of Obstetricians and Gynecologists, and the American Academy of Family Physicians. The law also ensures insurance coverage for vaccines and that pharmacists and other health professionals can continue to administer them.
• The Michigan Department of Agriculture and Rural Development (MDARD) today urged animal owners to remain vigilant and take steps to avoid the transmission of highly pathogenic avian flu from wild birds, given the start of wild bird migration and recently reported H5N1 outbreaks in poultry in North Dakota and South Dakota. So far, no recent outbreaks have been reported from Michigan. In related developments, the US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) today reported two more H5N1 detections in poultry, both involving turkey farms in South Dakota—one in Beadle County and the other in McPherson County. Over the last 30 days, 10 outbreaks in commercial poultry and 5 in backyard flocks have led to the loss of about 500,000 birds.