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Published on: May 31, 2019
Infectious disease serologic survey in free-ranging Venezuelan anacondas (Eunectes murinus)
1Department of Clinical Care, Wildlife Health Sciences, Wildlife Conservation Society, Bronx, New York 10460-1099, USA.
Summary
Free-ranging Venezuelan anacondas showed no significant exposure to common infectious agents like equine encephalitis viruses or Leptospira. These findings suggest anacondas may not be significant reservoirs for these specific pathogens in this region.
Area of Science:
- Veterinary Medicine
- Herpetology
- Infectious Diseases
Background:
- Reptiles can asymptomatically carry pathogens, posing risks to humans and animals.
- Infectious diseases impact wild reptile populations, complicating conservation efforts like reintroduction projects.
- Limited serological data exists for pathogen exposure in free-ranging reptiles.
Purpose of the Study:
- To investigate antibody presence against specific infectious agents in free-ranging Venezuelan anacondas.
- To assess the potential role of anacondas as reservoirs for zoonotic and reptilian pathogens.
Main Methods:
- Serum/plasma samples collected from ten wild Venezuelan anacondas (Eunectes murinus).
- Screening for antibodies against eastern, western, and Venezuelan equine encephalitis viruses.
- Testing for vesicular stomatitis virus, ophidian paramyxovirus, 19 Leptospira interrogans serovars, and Cryptosporidium serpentes.
Main Results:
- No antibodies were detected against the tested viruses, Leptospira serovars, or Cryptosporidium.
- Observed antibody titers were low and potentially non-specific.
- The limited sample size suggests minimal exposure in this anaconda population.
Conclusions:
- The surveyed anacondas did not show significant exposure to the screened infectious agents.
- Based on this limited study, Venezuelan anacondas in this area are unlikely to be significant reservoirs for these specific pathogens.
- Further research with larger sample sizes is warranted to confirm these findings.
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