| molecular identification of streptococcus equi subsp. equi and streptococcus equi subsp. zooepidemicus in nasal swabs samples from horses suffering respiratory infections in iran. | the objective of this study was to evaluate the existence of streptococcus equi subsp. equi and streptococcus equi subsp. zooepidemicus as probable agents associated with naturally occurring infection of the equine upper respiratory disease in mashhad area. nasal swabs samples from thirty horses with upper respiratory tract infections were collected. the bacteria isolated and identified were streptococcus equi subsp. equi (1 isolate), streptococcus equi subsp. zooepidemicus (25 isolates), pasteu ... | 2008 | 18817175 |