{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T05:00:34Z","timestamp":1787029234290,"version":"build-2736575974"},"reference-count":43,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,6,8]],"date-time":"2024-06-08T00:00:00Z","timestamp":1717804800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"American Society of Tropical Medicine and Hygiene","award":["NIH R01 AI102918"],"award-info":[{"award-number":["NIH R01 AI102918"]}]},{"name":"USDA Agricultural Research Service","award":["NIH R01 AI102918"],"award-info":[{"award-number":["NIH R01 AI102918"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pathogens"],"abstract":"<jats:p>Rift Valley fever virus (RVFV) is an adaptable arbovirus that can be transmitted by a wide variety of arthropods. Widespread urban transmission of RVFV has not yet occurred, but peri-urban outbreaks of RVFV have recently been documented in East Africa. We previously reported low-level exposure in urban communities and highlighted the risk of introduction via live animal influx. We deployed a slaughtered animal testing framework in response to an early warning system at two urban slaughterhouses and tested animals entering the meat value chain for anti-RVFV IgG and IgM antibodies. We simultaneously trapped mosquitoes for RVFV and bloodmeal testing. Out of 923 animals tested, an 8.5% IgG seroprevalence was identified but no evidence of recent livestock exposure was detected. Mosquito species abundance varied greatly by slaughterhouse site, which explained 52% of the variance in blood meals. We captured many Culex spp., a known RVFV amplifying vector, at one of the sites (p &lt; 0.001), and this species had the most diverse blood meals. No mosquito pools tested positive for RVFV antigen using a rapid VecTOR test. These results expand understanding of potential RVF urban disease ecology, and highlight that slaughterhouses are key locations for future surveillance, modelling, and monitoring efforts.<\/jats:p>","DOI":"10.3390\/pathogens13060488","type":"journal-article","created":{"date-parts":[[2024,6,10]],"date-time":"2024-06-10T10:08:43Z","timestamp":1718014123000},"page":"488","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Expanding Understanding of Urban Rift Valley Fever Risk and Associated Vector Ecology at Slaughterhouses in Kisumu, Kenya"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9337-2409","authenticated-orcid":false,"given":"Keli Nicole","family":"Gerken","sequence":"first","affiliation":[{"name":"Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA 94305, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kevin Omondi","family":"Owuor","sequence":"additional","affiliation":[{"name":"Kenya Medical Research Institute, Centre for Global Health Research, Kisumu 40100, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8445-2885","authenticated-orcid":false,"given":"Bryson","family":"Ndenga","sequence":"additional","affiliation":[{"name":"Kenya Medical Research Institute, Centre for Global Health Research, Kisumu 40100, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3041-2714","authenticated-orcid":false,"given":"Sammy","family":"Wambua","sequence":"additional","affiliation":[{"name":"Pwani University Biosciences Research Centre (PUBReC), Pwani University, Kilifi 80108, Kenya"},{"name":"Research and Conservation Support Society (RECOURSE), Kilifi 80108, Kenya"},{"name":"School of Biodiversity One Health and Veterinary Medicine, University of Glasgow, Glasgow G12 8QQ, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christabel","family":"Winter","sequence":"additional","affiliation":[{"name":"Kenya Medical Research Institute, Centre for Global Health Research, Kisumu 40100, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Salome","family":"Chemutai","sequence":"additional","affiliation":[{"name":"Pwani University Biosciences Research Centre (PUBReC), Pwani University, Kilifi 80108, Kenya"},{"name":"Research and Conservation Support Society (RECOURSE), Kilifi 80108, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodney","family":"Omukuti","sequence":"additional","affiliation":[{"name":"Pwani University Biosciences Research Centre (PUBReC), Pwani University, Kilifi 80108, Kenya"},{"name":"Research and Conservation Support Society (RECOURSE), Kilifi 80108, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Arabu","sequence":"additional","affiliation":[{"name":"Pwani University Biosciences Research Centre (PUBReC), Pwani University, Kilifi 80108, Kenya"},{"name":"Research and Conservation Support Society (RECOURSE), Kilifi 80108, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irene","family":"Miring\u2019u","sequence":"additional","affiliation":[{"name":"Pwani University Biosciences Research Centre (PUBReC), Pwani University, Kilifi 80108, Kenya"},{"name":"Research and Conservation Support Society (RECOURSE), Kilifi 80108, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7877-9224","authenticated-orcid":false,"given":"William C.","family":"Wilson","sequence":"additional","affiliation":[{"name":"Foreign Arthropod-Borne Animal Disease Research, United States Department of Agriculture-Agriculture Research Service (USDA-ARS), Manhattan, KS 66502, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9000-7008","authenticated-orcid":false,"given":"Francis","family":"Mutuku","sequence":"additional","affiliation":[{"name":"Department of Environment and Health Sciences, Technical University of Mombasa, Mombasa 80110, Kenya"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jesse J.","family":"Waggoner","sequence":"additional","affiliation":[{"name":"Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8751-4810","authenticated-orcid":false,"given":"Benjamin","family":"Pinsky","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, CA 94305, 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