Quantifying the potential for bluetongue virus transmission in Danish cattle farms.

ABSTRACT: We used a mechanistic transmission model to estimate the number of infectious bites (IBs) generated per bluetongue virus (BTV) infected host (cattle) using estimated hourly microclimatic temperatures at 22,004 Danish cattle farms for the period 2000-2016, and Culicoides midge abundance based on 1,453 light-trap collections during 2007-2016. We used a range of published estimates of the duration of the hosts' infectious period and equations for the relationship between temperature and four key transmission parameters: extrinsic incubation period, daily vector survival rate, daily vector biting rate and host-to-vector transmission rate resulting in 147,456 combinations of daily IBs. More than 82% combinations of the parameter values predicted > 1 IBs per host. The mean IBs (10-90^th

SUBMITTER: Haider N 

PROVIDER: S-EPMC6749064 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature