Chikungunya virus Detection in Aedes aegypti and Culex quinquefasciatus during an Outbreak in the Amazon Region.
Viruses
; 12(8)2020 08 04.
Article
in En
| MEDLINE
| ID: mdl-32759878
ABSTRACT
Chikungunya virus (CHIKV) was first reported in Brazil in 2014 and, after it spread countrywide, an outbreak of febrile illness with reports of arthralgia happened in the municipality of Xinguara, Pará, Brazil in 2017, indicating the virus' circulation. Here, we aimed to investigate CHIKV in mosquito vectors collected during an active surveillance of virus isolation in cell culture by using molecular detection and viral genome sequencing. A total of 492 Aedes, Culex and Mansonia mosquitoes were collected and separated in 36 pools according to the species and sex, and 22.2% (8/36) were positive. CHIKV was indentified in pools of Ae. aegypti females (n = 5), an Ae. aegypti male (n = 1) and in Culex quinquefasciatus females (n = 2). However, as the mosquitoes' whole bodies were macerated and used for detection, one cannot suggest the role of the latter in the viral transmission. Despite this, vector competence studies must be carried out in the different species to investigate long-term adaptations. Viral genome sequencing has characterized the East-Central-South-African (ECSA) genotype in all positive pools analyzed, corroborating previous reports for the Amazon region.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Chikungunya virus
/
Aedes
/
Culex
/
Chikungunya Fever
/
Mosquito Vectors
Type of study:
Diagnostic_studies
Limits:
Animals
/
Female
/
Humans
/
Male
Country/Region as subject:
America do sul
/
Brasil
Language:
En
Journal:
Viruses
Year:
2020
Document type:
Article
Affiliation country:
Brazil