| sero-prevalence and epidemiology of peste des petits ruminants in libya. | we conducted a cross-sectional study during 2013 to quantify the serological prevalence of peste des petits ruminants (ppr) infection and to investigate host factors associated with ppr infection in small ruminants in libya. a two-stage sampling design was carried out. a total number of 148 flocks owning at least 100 heads each were randomly selected. sixteen to forty-eight samples were collected from each selected flock. a total number of 3,508 serum samples from unvaccinated animals were colle ... | 2017 | 28703449 |