Prevalence, infected density or individual probability of infection? Assessing vector infection risk in the wild transmission of Chagas disease.

Proceedings. Biological Sciences
Carezza Botto-MahanAldo Solari

Abstract

Vector-borne infectious disease dynamics result mainly from the intertwined effect of the diversity, abundance, and behaviour of hosts and vectors. Most studies, however, have analysed the relationship between host-species diversity and infection risk, focusing on vector population instead of individuals, probably dismissing the level at which the transmission process occurs. In this paper, we examine the importance of the host community in accounting for infection risk, at both population and individual levels, using the wild transmission of the protozoan that causes Chagas disease as a vector-borne disease model. Chagas disease is caused by Trypanosoma cruzi, transmitted by triatomine insects to mammals. We assessed if T. cruzi infection in vectors is explained by small mammal diversity and their densities (total and infected), when infection risk is measured at population level as infection prevalence (under a frequency-dependent transmission approach) and as density of infected vectors (density-dependent transmission approach), and when measured at individual level as vector infection probability. We analysed the infection status of 1974 vectors and co-occurring small mammal hosts in a semiarid-Mediterranean ecosystem. Resu...Continue Reading

References

Jun 7, 2005·The American Naturalist·Volker H W Rudolf, Janis Antonovics
Aug 23, 2005·Memórias do Instituto Oswaldo Cruz·Carezza Botto-MahanAldo Solari
Mar 8, 2006·Proceedings. Biological Sciences·Vanessa O EzenwaStephen C Guptill
Apr 21, 2006·Ecology Letters·F KeesingR S Ostfeld
Oct 31, 2008·Ecology·Kathleen LoGiudiceRichard S Ostfeld
Jun 10, 2009·Vector Borne and Zoonotic Diseases·Carezza Botto-MahanAldo Solari
Oct 20, 2010·Journal of Environmental Monitoring : JEM·Scott CarverPhilip Weinstein
Feb 15, 2013·Nature·Pieter T J JohnsonKatherine L D Richgels
Mar 27, 2013·The American Journal of Tropical Medicine and Hygiene·M Marcela OrozcoRicardo E Gürtler
Sep 10, 2013·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Felipe Guhl, Juan David Ramírez
Jan 8, 2014·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·M Marcela OrozcoRicardo E Gürtler
Apr 9, 2014·Parasites & Vectors·Philippe BrémondSimone Frédérique Brenière
Apr 18, 2015·Journal of Theoretical Biology·Zheng Y X HuangWillem F de Boer
Jun 19, 2015·Proceedings. Biological Sciences·Michael Z LevyUNKNOWN Chagas Disease Working Group in Arequipa
Aug 21, 2015·Die Naturwissenschaften·Juana P CorreaCarezza Botto-Mahan
Mar 31, 2016·The American Naturalist·Andrew D M Dobson, Stuart K J R Auld
Jun 29, 2016·Acta Tropica·F ChacónG Ramírez-Toloza
Mar 14, 2018·Parasites & Vectors·Esteban Yefi-QuinterosPedro E Cattan
Mar 30, 2018·American Journal of Speech-language Pathology·Charles R GreenwoodJudith J Carta

❮ Previous
Next ❯

Citations

Aug 23, 2020·Pathogens·Juana P CorreaCarezza Botto-Mahan

❮ Previous
Next ❯

Related Concepts