When international travelers plan to visit a country that requires proof of yellow fever (YF) vaccination, other vaccines may be administered at travel clinics to protect the person from disease.
Because booster doses of pneumococcal conjugate vaccine (PCV) may be given at a similar time to yellow fever vaccine, researchers believed it essential to assess the immune response to YF when co-administered with PCV.
Yellow Fever and Pneumococcal Conjugate Vaccines Mix Well
39 Countries On Poliovirus Travel Advisory
Throughout 2024, various health agencies issued travel alerts regarding the detection of polioviruses. While polio is a vaccine-preventable disease, virus detections in wastewater and the environment have continued in 2025.
The Global Polio Eradication Initiative has confirmed various countries are reporting cases of wild polio, circulating vaccine-derived poliovirus type 2, and circulating vaccine-derived poliovirus type 1.
Risk for Chronic Fatigue Syndrome Higher After COVID-19
Nearly nine in 10 with chronic fatigue also meet criteria for long COVID
ACIP Immunization Schedules Issued for Children, Adults
Changes to both schedules include new and updated recommendations for COVID-19 vaccine, change to trivalent influenza vaccines