<unk>  are the aspect of<unk>  policy that concerns the movement of people across borders. Countries around the world require<unk> lers departing to other countries, or arriving from other countries, to be vaccinated against certain infectious diseases in order to prevent epidemics. At border checks, these<unk> lers are required to show proof of<unk>  against specific diseases; the most widely used<unk>  record is the<unk>  Certificate of<unk>  or Prophylaxis (ICVP or Carte Jaune/Yellow Card). Some countries require information about a passenger's<unk>  status in a passenger locator form.
Vaccination requirements for international travel
Blood donation restrictions on men who have sex with men
Influenza treatment
Malaria prophylaxis
Pre-exposure prophylaxis
Post-exposure prophylaxis
Immunization during pregnancy
Vaccine contamination with SV40