| epidemiological investigation into the introduction and factors for spread of peste des petits ruminants, southern tanzania. | a study was carried out to confirm and identify sources and elucidate factors associated with the introduction of peste des petits ruminants (ppr) in southern tanzania. this study was conducted in tandahimba and newala districts of mtwara region following suspected outbreak of ppr in the area. qualitative data were collected using semi-structured questionnaires and in-depth interviews of key informants who included goat and sheep owners with suspected cases of ppr and animal health service provi ... | 2012 | 23327377 |