https://govbooktalk.gpo.gov/2026/04/27/world-immunization-week-your-passport-to-a-safe-summerawareness-month/Government Book Talken2026-04-27T16:09:04+00:00World Immunization Week: Your Passport to a Safe SummerCDC, vaccines, Travel and Tourism, World Immunization Week, vaccination, yellow card, Certificate of Vaccination, National Immunization Awareness Month, NIAM, International Certificate of Vaccination, International Certificate of Vaccination or Prophylaxis