Follow-up tuberculosis prevalence survey of Transkei

After 5 years a follow-up prevalence survey was conducted in Transkei on a randomly selected sample of the rural population. The parameters investigated were bacteriological prevalence of tubercle bacilli in sputum, radiological prevalence of chest abnormalities associated with tuberculosis in adult...

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Vydáno v:Tubercle Ročník 61; číslo 2; s. 71
Hlavní autoři: Fourie, P B, Gatner, E M, Glatthaar, E, Kleeberg, H H
Médium: Journal Article
Jazyk:angličtina
Vydáno: Scotland 01.06.1980
Témata:
Adolescent
Adult
Child
Child, Preschool
Female
Follow-Up Studies
Humans
Infant
Lung - diagnostic imaging
Male
Mycobacterium tuberculosis - isolation & purification
Radiography
Risk
South Africa
Sputum - microbiology
Tuberculin Test
Tuberculosis, Pulmonary - diagnosis
Tuberculosis, Pulmonary - epidemiology
Tuberculosis, Pulmonary - transmission
ISSN:0041-3879
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Shrnutí:After 5 years a follow-up prevalence survey was conducted in Transkei on a randomly selected sample of the rural population. The parameters investigated were bacteriological prevalence of tubercle bacilli in sputum, radiological prevalence of chest abnormalities associated with tuberculosis in adults, and hypersensitivity to tuberculin in children. Bacteriological positivity was 2.1% on smear microscopy and 4.3% on culture. Radiological evidence of tuberculosis was demonstrable in 12.5% of subjects, of whom 8.7% were considered active and 3.8% inactive. The mean prevalence of tuberculin positivity according to the Mantoux test was 30.1%. An annual risk of infection of 4% was calculated, showing a continuous decrease of 5% per year on the 7% risk of infection encountered in 1972. Compared with the first survey, a general reduction in prevalence of tuberculosis is evident.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0041-3879
DOI:10.1016/0041-3879(80)90013-6