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1.
Emerg Infect Dis ; 30(7): 1496-1498, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38916587

ABSTRACT

We analyzed West Nile Virus (WNV) exposure from 1,222 blood donors during 2017-2018 from an area of south-central Spain. Results revealed WNV seroprevalence of 0.08% (95% CI 0.004%-0.4%) in this population. Our findings underscore the need for continued surveillance and research to manage WNV infection in this region.


Subject(s)
Antibodies, Viral , Blood Donors , West Nile Fever , West Nile virus , Humans , Spain/epidemiology , West Nile Fever/epidemiology , West Nile virus/immunology , Seroepidemiologic Studies , Male , Female , Adult , Middle Aged , Antibodies, Viral/blood , Young Adult , Adolescent , Aged
2.
Transbound Emerg Dis ; 69(5): e3208-e3214, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35182451

ABSTRACT

The objective of this study was to evaluate the spatial risk of exposure to Crimean-Congo haemorrhagic fever virus (CCHFV) infection of healthy blood donors in an enzootic region with a predicted risk gradient based on a virus-animal interaction risk model. We designed a cross-sectional study to test if the exposure pattern of the human population to CCHFV spatially matches the predicted risk. We randomly selected 1384 donors from different risk gradients and analyzed their sera searching for CCHFV antibodies. None of the selected blood donors showed exposure to CCHFV. This study shows that exposure risk spatial patterns, as predicted from animal-tick-virus models, does not necessarily match the pattern of human-infected tick interactions leading to CCHFV infection and CCHF cases, at least in a region of predicted moderate infection risk. The findings suggest that future studies should bear the potential drivers of tick-human encounter rates into account to more accurately predict risks.


Subject(s)
Deer , Hemorrhagic Fever Virus, Crimean-Congo , Hemorrhagic Fever, Crimean , Ticks , Animals , Cross-Sectional Studies , Hemorrhagic Fever, Crimean/epidemiology , Hemorrhagic Fever, Crimean/veterinary , Humans
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