Satellite imagery characterizes local animal reservoir populations of Sin Nombre virus in the southwestern United States

Proceedings of the National Academy of Sciences of the United States of America
By: , and 

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Abstract

The relationship between the risk of hantaviral pulmonary syndrome (HPS), as estimated from satellite imagery, and local rodent populations was examined. HPS risk, predicted before rodent sampling, was highly associated with the abundance of Peromyscus maniculatus, the reservoir of Sin Nombre virus (SNV). P. maniculatus were common in high-risk sites, and populations in high-risk areas were skewed toward adult males, the subclass most frequently infected with SNV. In the year after an El Niño Southern Oscillation (ENSO), captures of P. maniculatus increased only in high-risk areas. During 1998, few sites had infected mice, but by 1999, 18/20 of the high-risk sites contained infected mice and the crude prevalence was 30.8%. Only 1/18 of the low-risk sites contained infected rodents, and the prevalence of infection was lower (8.3%). Satellite imagery identified environmental features associated with SNV transmission within its reservoir population, but at least 2 years of high-risk conditions were needed for SNV to reach high prevalence. Areas with persistently high-risk environmental conditions may serve as refugia for the survival of SNV in local mouse populations.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Satellite imagery characterizes local animal reservoir populations of Sin Nombre virus in the southwestern United States
Series title Proceedings of the National Academy of Sciences of the United States of America
DOI 10.1073/pnas.252617999
Volume 99
Issue 26
Year Published 2002
Language English
Publisher National Academy of Sciences
Contributing office(s) Alaska Science Center
Description 6 p.
First page 16817
Last page 16822
Country United States
Other Geospatial Southwest