1. Human antibodies in Mexico and Brazil neutralizing tick-borne flaviviruses.
- Author
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Cervantes Rincón T, Kapoor T, Keeffe JR, Simonelli L, Hoffmann HH, Agudelo M, Jurado A, Peace A, Lee YE, Gazumyan A, Guidetti F, Cantergiani J, Cena B, Bianchini F, Tamagnini E, Moro SG, Svoboda P, Costa F, Reis MG, Ko AI, Fallon BA, Avila-Rios S, Reyes-Téran G, Rice CM, Nussenzweig MC, Bjorkman PJ, Ruzek D, Varani L, MacDonald MR, and Robbiani DF
- Subjects
- Humans, Brazil, Mexico, Antibodies, Viral immunology, Animals, Encephalitis Viruses, Tick-Borne immunology, Flavivirus immunology, Epitopes immunology, Antibodies, Monoclonal immunology, Ticks virology, Ticks immunology, Female, Male, Antibodies, Neutralizing immunology
- Abstract
Flaviviruses such as dengue virus (DENV), Zika virus (ZIKV), and yellow fever virus (YFV) are spread by mosquitoes and cause human disease and mortality in tropical areas. In contrast, Powassan virus (POWV), which causes severe neurologic illness, is a flavivirus transmitted by ticks in temperate regions of the Northern hemisphere. We find serologic neutralizing activity against POWV in individuals living in Mexico and Brazil. Monoclonal antibodies P002 and P003, which were derived from a resident of Mexico (where POWV is not reported), neutralize POWV lineage I by recognizing an epitope on the virus envelope domain III (EDIII) that is shared with a broad range of tick- and mosquito-borne flaviviruses. Our findings raise the possibility that POWV, or a flavivirus closely related to it, infects humans in the tropics., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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