Immunization

Child Health Vaccine Efficacy Vaccine Safety Vaccines Vaccine Coverage Vaccination Programs Childhood Vaccination Vaccine Recommendations Vaccine-Preventable Diseases Vaccine Distribution

48 Jurisdictions Extend RSV Infant Immunizations Through April 30

The CDC reports a later start this season with activity likely to stay elevated into April.

Monroe County Confirms Measles Case, Lists Two Exposure Sites

Brazil Confirms Second 2026 Measles Case in Rio

Minas Gerais Mpox Cases Rise to 17 as Manhuaçu Confirms First Infection

Argentina Starts Early 2026 Flu Campaign as Buenos Aires Province Begins Phase 1

CDC Reports Lower Flu Vaccine Effectiveness as Drifted H3N2 Dominates

UW–Madison Requires Students to Disclose Vaccination Status After Measles Case

WHO Reports Sharp Drop in Europe Measles Cases as Risk Persists

WHO Revokes Austria’s Measles Elimination Status After Biggest Regional Surge in Decades

U.S. Vaccine Panel Ends Universal Hepatitis B Birth-Dose Recommendation

Buenos Aires, Formosa Protest Exclusion From National Pro‑Vaccine Statement

Argentina Reaffirms National Vaccine Calendar With 22 Provinces, Adds Three Doses

WHO Confirms Global Measles Resurgence as Canada Loses Elimination and U.S. Status Is at Risk

WHO Reports Measles Setback With Vaccination Below Pre‑Covid Levels, Record Outbreaks

Mexico Warned on Measles Elimination Risk as Americas Lose Regional Status

Brazil Ramps Up Polio Vaccination as Coverage Lags, PAHO Warns of Reintroduction Risk

Dupixent Powers Sanofi’s Q3 as Vaccine Sales Slip

Measles Alerts Issued for Gold Coast School Exposure and 16 Sunshine Coast Sites

Manipur ASHA Walks for Hours to Deliver Polio Drops to Remote Villages

Maldives Becomes First Country to Earn WHO ‘Triple Elimination’ of Mother-to-Child HIV, Syphilis and Hepatitis B