Browsing by Author "Msamanga, G. I"

Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    The BCG coverage, annual tuberculosis infection rate in Newala primary school children: comparison with other studies done in Tanzania
    (University of Dar es Salaam, 1980) Msamanga, G. I
    A study was done during the month of May 1980 in Newala District to determine the BCG coverage, and annual tuberculosis infection rate. A total of 1646 primary school children aged between 6 and 14 years were included in the study population. A high BCC coverage of about 71.9% was demonstrated which however significantly increased with age. Using the 14mm or more cut off point the annual tuberculosis infection rate was estimated to be 1%. The Newala study demonstrated a significant decline in annual tuberculosis infection rate when compared to that obtained by the WHO (1958) survey conducted in the same area. Thus if the rate is converted to new infectious cases the district with a population of 300,000 people (1978 census) is expected to have 150 new smear positive cases per year. Among the four other areas recently surveyed in Tanzania, Newala was found to be among the least in annual tuberculosis infection rate. Bagamoyo had the highest estimate of the annual tuberculosis infection rate, 2.13% whereas Shinyanga had the lowest, 0.76%. The implications of the above results to the National Tuberculosis Control Programme are discussed and recommendations made.