Vaccines

Vitamin K shot refusals rose 77% from 2017 to 2024. Experts break down the drivers, risks, and how clinicians and payers should respond in 5 FAQs.

AACR urges Congress to protect NIH/NCI funding amid a fight over a contested OMB grantmaking rule.

A researcher explains why cardiac diagnoses, not all-cause mortality, are the most reliable finding in her vaccine-safety study.

An infectious disease specialist discusses HIV prevention barriers facing Black women and how long-acting options and education can close gaps.

A cardiovascular researcher explains why her team compared cardiac risks of COVID-19 infection and vaccination head-to-head.

A 4-million-person study finds unvaccinated COVID-19 infection raises myocarditis, pericarditis, and death risk far more than the Pfizer vaccine.

Experts discussed childhood vaccine recommendations, school requirements, exemptions, misinformation, and vaccine hesitancy.

Intismeran autogene plus pembrolizumab significantly improved recurrence-free and distant metastasis-free survival compared with pembrolizumab alone in resected stage IIB-IV melanoma.

William Schaffner, MD, explains why declining childhood vaccination rates are fueling the resurgence of measles and other preventable diseases.

COVID wastewater levels are climbing again in the Bay Area. Here's what to know about XFG "Stratus," Nimbus, symptoms, and vaccine protection.

Hepatitis B re-engagement efforts are underreported in lower-resource settings, highlighting gaps in care and the need for greater action.

Trump's vaccine executive order calls for fewer routine childhood vaccines and changes to MMR, raising questions about coverage, access, and vaccine uptake.

A large UK cohort study found atopic dermatitis raises the risk of shingles by 28%, with the steepest risk in severe disease and younger adults.

Global third-dose hepatitis B (HepB3) vaccine coverage reached 81.8% in 2023, but persistent gaps in Africa and South Asia threaten WHO elimination goals.

Moderna’s mRNA flu vaccine receives FDA approval after phase 3 data showed improved efficacy compared with standard flu vaccines.

People with HIV born after 1980 had an 81% lower risk of hepatitis B coinfection than earlier cohorts, highlighting the lasting impact of childhood vaccination.

HIV disrupts several steps required for durable antibody production; for example, CD4+ helper T cells are depleted and functionally impaired.

KFF poll links social media use and not having a trusted doctor to vaccine myth beliefs, fueling COVID-19 and measles risk.

Female newborns were more likely than males to miss vitamin K prophylaxis and hepatitis B birth doses, highlighting sex-based gaps in preventive care.

Vaccine news shaping the 2026-2027 immunization season includes major acquisitions, a key FDA panel vote, and new data on influenza vaccine effectiveness.

The US is close to eliminating hepatitis B in children, but chronic adult infection and a shifting vaccine policy threaten that progress.

A new study finds 2024-2025 COVID-19 vaccines reduced hospitalization and critical illness risk among adults, although protection waned over time.

Children aged 2 to 5 years with fall birthdays had higher flu vaccination rates and fewer diagnoses than those with summer birthdays.

Two posters presented at the EASL Congress 2026 highlight promising clinical and preclinical findings for AHB-137.

Five vaccines in development for HIV, tuberculosis, cancer, influenza, and coronaviruses could transform global health.