| evidence of cowdria ruminantium infection (heartwater) in amblyomma sparsum ticks found on tortoises imported into florida. | amblyomma marmoreum and a. sparsum ticks were collected from tortoises imported into florida from africa and were tested for cowdria ruminantium infection using a c. ruminantium-specific pcs20 polymerase chain reaction assay. in i shipment imported from zambia, 15 of the 38 a. sparsum male ticks collected from the leopard tortoises (geochelone pardalis) were found to be positive for infection with c. ruminantium. in contrast, all 148 a. marmoreum tested were negative for c. ruminantium infection ... | 2000 | 11128494 |
| emerging tick-borne disease in african vipers caused by a cowdria-like organism. | heartwater is a tick-borne infectious disease caused by the rickettsial organism cowdria ruminantium, currently ehrlichia ruminantium. it poses an imminent threat to the western hemisphere, where it could cause mortality in cattle and other ruminant livestock in excess of 70%. it has been reported in the caribbean; and its vector, amblyomma sparsum, has been found on imported african spurred tortoises (geochelone sulcata) and leopard tortoises (geochelone pardalis) in southern florida in the uni ... | 2006 | 17135546 |
| molecular detection of tick-borne pathogen diversities in ticks from livestock and reptiles along the shores and adjacent islands of lake victoria and lake baringo, kenya. | although diverse tick-borne pathogens (tbps) are endemic to east africa, with recognized impact on human and livestock health, their diversity and specific interactions with tick and vertebrate host species remain poorly understood in the region. in particular, the role of reptiles in tbp epidemiology remains unknown, despite having been implicated with tbps of livestock among exported tortoises and lizards. understanding tbp ecologies, and the potential role of common reptiles, is critical for ... | 2017 | 28620610 |