[Changes in the regulations on smallpox vaccination in Great Britain and USA].
D000293:Adolescent; D000328:Adult; D002648:Child; D006801:Humans; D007115:Immunization Schedule; D012899:Smallpox / Q000517:prevention & control; D012900:Smallpox Vaccine; D006113:United Kingdom; D014481:United States; D014611:Vaccination
D012900:Smallpox Vaccine
Zmĕna predpisů o ockování proti nestovicím v Británii a v US.