October 1st 2025
Low vaccination rates did not rise sufficiently to attain "herd immunity" after a measles outbreak in a region in which it had been eliminated.
September 27th 2025
September 25th 2025
September 20th 2025
CDC Vaccine Advisors Table Hepatitis B Vaccine Vote, Keeps Current Policy in Place
September 19th 2025The non-vote leaves the current immunization recommendation in place, but led to further debate amongst the CDC's ACIP panelists on the hepatitis B vaccine as well as questioning the current process of the delivery of data and whether they would be utilizing working groups and grading studies.
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CDC Adds Twice-Yearly Lenacapavir to HIV PrEP Options
September 18th 2025Today’s MMWR recommends twice-yearly subcutaneous lenacapavir for people ≥35 kg, citing PURPOSE-1/2 efficacy, a favorable safety profile with mostly mild to moderate injection-site reactions, and potential adherence benefits.
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HHS and CDC Appoint 5 New ACIP Members Ahead of Fall Meeting
September 16th 2025Catherine M. Stein, Evelyn Griffin, Hilary Blackburn, Kirk Milhoan, and Raymond Pollak join ACIP as the panel prepares to vote on MMRV, hepatitis B, and COVID-19 recommendations following the June reconstitution.
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High-Dose Influenza Vaccine vs Standard Dose: Hospitalization Outcomes in Older Adults
August 30th 2025Results from a Danish trial of more than 330,000 adults 65 years or older found high- and standard-dose influenza vaccines had similar effectiveness against influenza or pneumonia-related hospitalizations.
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FDA Approves Updated COVID-19 Vaccines for Fall 2025, Restricts Eligibility to High-Risk Groups
Published: August 29th 2025 | Updated: August 29th 2025New authorization limits shots to adults ≥65 and individuals with underlying health conditions, with ACIP set to review guidance and insurance coverage implications.
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FDA Lifts Pause on Chikungunya Vaccine IXCHIQ Use in Adults 60+ Following Safety Review
Published: August 8th 2025 | Updated: August 8th 2025After a three-month review, the FDA and EMA have cleared continued use of IXCHIQ in adults 60+, adding new safety warnings for elderly individuals with chronic conditions.
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Monoclonal Antibody Shows 84% Relative Risk Reduction of Symptomatic COVID-19 vs Placebo
June 29th 2025Results from Invivyd’s pemivibart (Pemgarda) phase 3 trial show it had a significant PrEP effect during the 6-month on-drug period for both immunocompromised and immunocompetent populations.
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