[Tuberculosis infection and morbidity in children of large and small families in relation to epidemic risks of tuberculosis foci].
Tuberculosis contamination, primary infection and morbidity rates in 1,162 children from 484 family foci of the infection in relation to epidemic hazard of the affected and the number of children in contact with the latter were studied. Contamination of children in large families is 1.4 times higher than in small ones (61.6 and 44.7%, respectively); primary infection is 1.5 times higher (30.2 and 19.8%); and morbidity rate is 2.3 times higher (22.7% in large and 9.8% in small families per 1000 man/years of observation). In this case a direct relation of the main epidemiological characteristics of tuberculosis to the degree of the bacillary excretion intensity, duration and nature of the contact, number of children in a family, etc. is found. Therefore, large family foci of the tuberculous infection should be referred to Group 1 according to the accepted classification of tuberculosis foci irrespective of either presence or absence of bacillary excretion or its intensity.
Murriev
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D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005191:Family Characteristics; D006801:Humans; D014376:Tuberculosis / Q000453:epidemiology*; D014423:Turkmenistan / Q000453:epidemiology
Infitsirovannost' i zabolevaemost' tuberkulezom deteĭ v mnogedetnykh i malodetnykh sem'iakh v zavisimosti ot épidemicheskoĭ opasnosti ochaga tuberkuleznoĭ infektsii.