Lack of Competence of US Mosquito Species for Circulating Oropouche Virus

Emerg Infect Dis. 2025 Mar;31(3):619-621. doi: 10.3201/eid3103.241886. Epub 2024 Jan 21.

Abstract

Given recent outbreaks of Oropouche virus in Latin America and >100 confirmed travel-associated cases in the United States, we evaluated the competence of US vectors, including Aedes albopictus, Culex quinquefasciatus, Culex pipiens, and Anopheles quadrimaculatus mosquitoes. Results with historic and recent isolates suggest transmission potential for those species is low.

Keywords: Oropouche virus; United States; vector competence; vector-borne infections; virus emergence; viruses.

MeSH terms

  • Animals
  • Anopheles / virology
  • Bunyaviridae Infections* / epidemiology
  • Bunyaviridae Infections* / transmission
  • Bunyaviridae Infections* / virology
  • Culex / virology
  • Culicidae* / virology
  • Humans
  • Mosquito Vectors* / virology
  • Orthobunyavirus* / genetics
  • Orthobunyavirus* / isolation & purification
  • United States / epidemiology

Supplementary concepts

  • Oropouche orthobunyavirus