Prevalence of Latent Tuberculosis Infection among Internally Displaced School Children in Mayo area, Khartoum
Prevalence of Latent Tuberculosis Infection among Internally Displaced School Children in Mayo area, Khartoum
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Date
2015-04-06
Authors
Abd Elrahman, Wahiba
Journal Title
Journal ISSN
Volume Title
Publisher
UOFK
Abstract
Tuberculosis remains a public health problem worldwide. It is a
social disease prevalent in population undergoing the stress of poverty,
malnutrition and displacement.
This descriptive cross sectional community based study conducted to
measure the prevalence of Latent Tuberculosis Infection and associated
risk factors among the internally displaced school children in Mayo area in
Khartoum (in Mandilla camp and Elwihda area) during the period form ١st
of September ٢٠٠٥ to February, ١٥th ٢٠٠٦.
Tuberculin survey was carried out in four basic schools. ٣٩٩
schoolchildren in the age group ٦-٩ years were included in this study.
Mantoux test performed with intra-dermal injection of ٠٫١ ml (٥ TU) and
reaction measured ٣-٤ days later.
The mean age of the children in the study is ٧٫٤ years. Females were
dominated by males with ratio of ١٫٢: ١.
Eighty seven percent of the children were vaccinated with BCG and
٧١٫٧٪ of the studied population has BCG scar.
The cutoff points for Latent TB infection were taken at ١٠mm and
more for the non-vaccinated children and ١٥ mm and more for the BCG
vaccinated.
The prevalence of Latent TB infection among children without scar
is ١٧٫٦٪, while fore the whole ١٤% of the children were infected; The ARI
is estimated as ٢٫٠٢٪ which gives an incidence of ١٠٠٫٩/١٠٠،٠٠٠ smear
positive cases per year.
Domestic crowding, contact with tuberculous patient and older age
are risk factors associated with Latent TB infection in this study. However,
the difference was neither significant in relation to gender nor to nutritional
status.
Tuberculosis is a preventable disease; improving socioeconomic
conditions, reducing crowding, contact investigations and vaccination are
strongly recommended for it is control.
Description
Keywords
Latent Tuberculosis,Internally Displaced,School Children