IUCN / SSC Cat Specialist Group - Digital Cat Library |
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| Hartmann, T.L.S. | |
| Anticorpos neutralizantes contra os v¡rus da cinomose e parainfluenza caninos em cÆes e felinos silvestres em cativeiro | |
| 2006 Full Book | |
Canine distemper virus (CDV) and canine parainfluenza virus (CPIV) infect a great variety of hosts ranges and are distributed worldwide. CDV has caused diseases of significant morbidity and mortality in large felids. CPIV is highly contagious among dogs, and cats are susceptible to experimental infections. CPIV is usually associated with an acute self-limiting tracheobronchitis. However, it can act sinergistically with other infectious agents, such as CDV, and cause clinical signs of variable severity. As information on CDV and CPIV invections in our millieu are scarce, this study was carried out aiming to increase knowledge on the prevalence of CDV and CPIV in stray dogs as well as in captive Brazilian wild felids. In order to have an estimate on such prevalences, sera from these animals were tested for neutralizing antibodies to CDV strains Rockborn and Snyder Hill, and to CPIV strain V660. Initially, 173 sera from stray dogs kept in kennels from the municipalities of Novo Hamburgo and Porto Alegre, RS, were examined. It can be concluded that the stray dog populations under study shows few serological evidence of previous contact with CDV and seem largely susceptible to CDV infections. On the other hand, CPIV seems to circulate widely in the examined population. In the second part of this study, as there are no reports on CDV and CPIV infections in wild felids in Brazil, it was aimed to determine whether there would be any evidence of such infections among some of such species. For that, 84 sera from wild felids of six different Brazilian native species (_Leopardus tigrinus, Puma concolor, Leopardus wiedii, Herpailurus yaguarondi, Panthera onca_), all kept in captivity in different regions of the country, were tested for neutralizing antibodies to both CDV and CPIV. All wild felid sera tested were negative for antibodies to the two strains of CDV as well as to CPIV. These results indicate that CDV and CPIV do not seem to circulate among the wild felid populations examined. |
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