title: [Duration of protection after BCG vaccination with the 1331 Copenhagen strain (author's transl)].
abstract: Children vaccinated in 1975 with different doses of BCG were tested when they were 2 1/2 years old by means of the tine test or, if negative, the tuberculin test at 1 : 100. Of those children who, according to present-day view, had been satisfactorily immunised, 34 of 42 still showed a tuberculin allergy after 2 1/2 years, of those unsatisfactorily vaccinated only 23 of 38. In addition it was found that, contrary to general teaching, positive tuberculin allergy is possible even without scar after a BCG vaccination with the Copenhagen strain (6 of 13). The need of revaccination of tuberculin-negative persons is stressed.
mesh_terms: D001500:BCG Vaccine; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D007109:Immunity; D012882:Skin Tests; D013997:Time Factors; D014374:Tuberculin Test
chemical_list: D001500:BCG Vaccine
vernacular_title: Dauer des Impfschutzes nach BCG-Impfungen mit dem Stamm 1331 Kopenhagen.