[The state of smallpox immunity in children with multiple negative results to previous vaccinations].
D000293:Adolescent; D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D002648:Child; D002675:Child, Preschool; D006801:Humans; D012882:Skin Tests; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine; D014611:Vaccination
D000906:Antibodies; D012900:Smallpox Vaccine
O sostoianii protivoospennogo immuniteta u deteĭ s mnogokratnymi otritsatel'nymi rezul'tatami predshestvuiushchikh privivok.