Fecha/hora: 09/06/2024 21:06:46

Biblioteca(s): | INIA Las Brujas.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | Internacional - --
Fecha corriente: | 30/01/2020
Fecha de la última actualización: | 10/02/2020
Autoria: | GOSTIC, K.M.; WUNDER, E.A.; BISHT, V.; HAMOND, C.; JULIAN, T.R.; KO, A.I.; LLOYD-SMITH, J.O.
Afiliación: | KATELYN M. GOSTIC, Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, United States; ELSIO A. WUNDER, Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, United States; Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Salvador, Bahia, Brazil; VIMLA BISHT, Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, United States; CAMILA HAMOND, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, United States; TIMOTHY R. JULIAN, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland; Swiss Tropical and Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland; ALBERT I. KO, Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, United States; Gonçalo Moniz Institute, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Salvador, Bahia, Brazil; JAMES O. LLOYD-SMITH, Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, United States; Fogarty International Center, National Institutes of Health, Bethesda, MD, United States.
Título: | Mechanistic dose-response modelling of animal challenge data shows that intact skin is a crucial barrier to leptospiral infection.
Año de publicación: | 2019
Fuente/Imprenta: | Philosophical Transactions of the Royal Society B: Biological Sciences, 30 September 2019, Volume 374, Issue 1782, Article number 2019036. Doi: https://doi.org/10.1098/rstb.2019.0367
ISSN: | 0962-8436
DOI: | 10.1098/rstb.2019.0367
Idioma: | Inglés

Notas:

Article history: Accepted: 2 April 2019 / Published:12 August 2019.
This article is part of the theme issue "Dynamic and integrative approaches to understanding pathogen spillover".
Electronic supplementary material is available online at https://dx.doi.org/10.6084/m9.figshare.c.4557260

Contenido:

ABSTRACT.

Leptospirosis is a widespread and potentially life-threatening zoonotic disease caused by spirochaetes of the genus Leptospira. Humans become infected primarily via contact with environmental reservoirs contaminated by the urine of shedding mammalian hosts. Populations in high transmission settings, such as urban slums and subsistence farming communities, are exposed to low doses of Leptospira on a daily basis. Under these conditions, numerous factors determine whether infection occurs, including the route of exposure and inoculum dose. Skin wounds and abrasions are risk factors for leptospirosis, but it is not known whether broken skin is necessary for spillover, or if low-dose exposures to intact skin and mucous membranes can also cause infection. To establish a quantitative relationship between dose, route and probability of infection, we performed challenge experiments in hamsters and rats, developed mechanistic dose-response models representing the spatial dynamics of within-host infection and persistence, and fitted models to experimental data. Results show intact skin is a strong barrier against infection, and that broken skin is the predominant route by which low-dose environmental exposures cause infection. These results identify skin integrity as a bottleneck to spillover of Leptospira and underscore the importance of barrier interventions in the prevention of leptospirosis. This article is part of the theme issue 'Dynamic and integrative approaches to understanding pathogen spillover'. © 2019 The Author(s) Published by the Royal Society. All rights reserved.

Palabras-Clave: | Animal model; Dose-response; Emerging infectious disease; PLATAFORMA SALUD ANIMAL; Zoonotic spillover.
Thesagro: | LEPTOSPIRA; LEPTOSPIROSIS.
Categoría del tema: | L73 Enfermedades de los animales
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102140-1) - PXI - AP - DD - PP/Phylosophical Transictions B/2019 -  -  - DIS