Examination of stool samples of normal subjects in the filaraemic areas (endemic normal) revealed that 48.8% were found to be infected with intestinal parasites.
We describe changes in stool specimen sensitivity for poliovirus isolation during a time when wild poliovirus transmission has been rapidly declining.
It is programmatically important to identify and correct factors that lead to the collection of too few or inadequate stools.
An estimate of number of stools from general practice would be extremely useful as a denominator for other national surveillance systems facilitating international comparisons.
A second stool sample was obtained from the positive farm workers as well as from their household contacts.
Environmental/food samples and stool specimens of food handlers were taken from the observed facilities.
For cases with two adequate stool specimens, the first specimen also was collected within a median of 7 days.
Stool samples were also collected from each of the parents and the 2year-old brother.
