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Abstract#mosquitoes target a wide range of vertebrate species for blood meal and study of these vector–host interactions enhances our knowledge of how vector-borne viruses are transmitted. In the last decades, West-Central Brazil has faced the emergence and reemergence of several arboviruses, with a great public health impact. In addition to the well-known #Aedes-borne viruses, such as dengue, Zika, and chikungunya, other arboviruses have spread throughout the country and constitute a continuous public health concern. We report results of blood meal analysis of #mosquitoes (Diptera: Culicidae) collected in urbanized areas of West-Central Brazil during a Zika virus surveillance between 2017 and 2018. Amplification and sequencing of mitochondrial DNA were used to determine vertebrate origin. A total of 284 blood-engorged #mosquitoes belong to 6 genera and 12 species were collected. Of these, we successfully identified blood meal in 146 (51.4%). Collections of blood-fed individuals were dominated by species of #Culex (65.8%) and #Aedes (25.4%). Overall, blood meal profiles demonstrated that humans were the main source (56.8%). Despite anthropophilic preferences, #Aedes aegypti also fed on domestic (12.5%) and wild mammals (8.3%). #Culex spp. showed an ornithophilic pattern. Humans made up 80% (n = 20) of blood meals from #Aedes albopictus while 20% (n = 5) were from horses. Our results expand the knowledge regarding the vertebrate species used as hosts by #mosquitoes in urbanized areas of Brazil. The variety of vertebrate species, including rodents, bats, and humans used by the local #mosquitoes, highlights the continuous risk for spillover events.

Abstract. Aedes aegypti is the main vector species of yellow fever, dengue, Zika and chikungunya. The species is originally from Africa but has experienced

Arboviruses transmitted by Aedes mosquitoes have an expanding global distribution and identifying areas at risk is important for public health planning. Here, the authors present global disease maps f...

West Nile (WNV) and Usutu (USUV) viruses co-circulated in a region of Central Italy (Lazio) in 2018, as evidenced by the detection of WNV in the nervo…

The mosquito Aedes aegypti is the primary vector for dengue virus (DENV), which infects millions of people annually. Variability in DENV susceptibility among wild Ae. aegypti populations is governed b...