Host feeding patterns of Nyssorhynchus darlingi (Diptera: Culicidae) in the Brazilian Amazon

Author(s)

Nagaki, Sandra Sayuri ^[1] ; Chaves, Leonardo S. M. ^[1] ; Lopez, Rossana Veonica Mendoza ^[2] ; Bergo, Eduardo S. ^[3] ; Laporta, Gabriel Z. ^[4] ; Conn, Jan E. ^{[5, 6]} ; Sallum, Maria Anice Mureb ^[1]

Affiliation

^[1] Univ Sao Paulo, Fac Saude Publ, Dept Epidemiol, Sao Paulo, SP - Brazil

^[2] Canc Inst State Sao Paulo, Ctr Translat Invest Oncol, Sao Paulo, SP - Brazil

^[3] Secretaria Estado Saude Sao Paulo, Superintendencia Controle Endemias, Araraquara, SP - Brazil

^[4] Fdn ABC, Ctr Univ Saude ABC, Setor Posgrad Pesquisa & Inovacao, Santo Andre, SP - Brazil

^[5] New York State Dept Hlth, Wadsworth Ctr, Albany, NY - USA

^[6] SUNY Albany, Sch Publ Hlth, Dept Biomed Sci, Albany, NY - USA

• Document type: Journal article
• Source: Acta Tropica; v. 213, JAN 2021.
• Web of Science Citations: 0

Abstract

Nyssorhynchus darlingi (Root) is the dominant malaria vector in the Brazilian Amazon River basin, with additional Anophelinae Grassi species involved in local and regional transmission. Mosquito blood-feeding behavior is an essential component to define the mosquito-human contact rate and shape the transmission cycle of vector-borne diseases. However, there is little information on the host preferences and blood-feeding behavior of Anophelinae vectors in rural Amazonian landscapes. The barrier screen sampling (BSS) method was employed to sample females from 34 peridomestic habitats in 27 rural communities from 11 municipalities in the Brazilian Amazon states of Acre, Amazonas, Par ` a and Rondonia, from August 2015 to November 2017. Nyssorhynchus darlingi comprised 97.94% of the females collected resting on barrier screens, and DNA sequence comparison detected 9 vertebrate hosts species. The HBI index ranged from 0.03-1.00. Results revealed the plasticity of Ny. darlingi in blood-feeding on a wide range of mainly mammalian hosts. In addition, the identification of blood meal sources using silica-dried females is appropriate for studies of human malaria vectors in remote locations. (AU)

• FAPESP's process: 16/08562-6 - Malaria vectors (Culicidae:Anopheles) in the Brazilian Amazon rural settlements
• Grantee: Sandra Sayuri Nagaki
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 14/26229-7 - Latitudinal landscape genomics and ecology of Anopheles darlingi
• Grantee: Maria Anice Mureb Sallum
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 14/09774-1 - Dynamics of malaria transmission under distinct landscape fragmentation thresholds
• Grantee: Gabriel Zorello Laporta
• Support Opportunities: BIOTA-FAPESP Program - Young Investigators Grants