Biology:Sylvatic cycle
The sylvatic cycle, also enzootic or sylvatic transmission cycle, is a portion of the natural transmission cycle of a pathogen. Sylvatic refers to the occurrence of a subject in or affecting wild animals. The sylvatic cycle is the fraction of the pathogen population's lifespan spent cycling between wild animals and vectors. Humans are usually an incidental or dead-end host, infected by a vector. This is opposed to a "domestic" or "urban" cycle, in which the pathogen cycles between vectors and non-wild, urban, or domestic animals; humans may have differing infection rates from these cycles due to transmission efficiencies and environmental exposure levels.[1][2]
Examples of pathogens that contain a sylvatic cycle include trichinosis,[3] dengue viruses,[4] Yersinia pestis,[2] Chagas disease,[1][5] and rabies.[6]
See also
References
- ↑ 1.0 1.1 Fernandes O; Mangia RH; Lisboa CV et al. (1999). "The complexity of the sylvatic cycle of Trypanosoma cruzi in Rio de Janeiro state (Brazil) revealed by the non-transcribed spacer of the mini-exon gene". Parasitology 118 (2): 161–6. doi:10.1017/s0031182098003709. PMID 10028530.
- ↑ 2.0 2.1 Plague: Yersinia pestis
- ↑ "Sylvatic trichinosis in British Columbia: potential threat to human health from an independent cycle". Public Health Rep 93 (2): 189–93. 1978. PMID 635095.
- ↑ Vasilakis N; Holmes EC; Fokam EB et al. (2007). "Evolutionary processes among sylvatic dengue type 2 viruses". J. Virol. 81 (17): 9591–5. doi:10.1128/JVI.02776-06. PMID 17553878.
- ↑ "EPIDEMIOLOGY OF CHAGAS DISEASE". http://www.dbbm.fiocruz.br/tropical/chagas/chapter4.html.
- ↑ Sudhi Ranjan Garg (2013). Rabies in Man and Animals. Springer Science & Business Media. p. 15. ISBN 9788132216056. https://books.google.com/books?id=JAnABAAAQBAJ&pg=PA15.
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