Details

Autor(en) / Beteiligte

• Aragão, Carine Fortes
• Pinheiro, Valéria Cristina Soares
• Nunes Neto, Joaquim Pinto
• Silva, Eliana Vieira Pinto da
• Pereira, Glennda Juscely Galvão
• Nascimento, Bruna Laís Sena do
• Castro, Karoline da Silva
• Maia, Ariadne Mendonça
• Catete, Clistenes Pamplona
• Martins, Lívia Carício
• Tadei, Wanderli Pedro
• Silva, Sandro Patroca da
• Cruz, Ana Cecília Ribeiro

Titel

Natural Infection of Aedes aegypti by Chikungunya and Dengue type 2 Virus in a Transition Area of North-Northeast Brazil

Ist Teil von

• Viruses, 2019-12, Vol.11 (12), p.1126

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2019

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Dengue fever, chikungunya, and Zika are diseases caused by viruses transmitted by and . In Brazil, the number of human infections is high, but few studies are performed in mosquito vectors. This study aimed to investigate the presence of Zika, Dengue and Chikungunya viruses in and from the municipalities of Alto Alegre, Caxias, Codó, and São Mateus do Maranhão, located in the state of Maranhão, Northeast Brazil. The mosquitoes were collected with a mechanical aspirator, identified, triturated, and then submitted to RNA extraction and RT-qPCR. The positive samples were confirmed by virus isolation and genome sequencing. Three hundred and forty-eight (176 males and 172 females) and 12 (eight males and four females) were collected and tested. was the only vector positive in two municipalities-Codó, with detection of (CHIKV) belonging to the East-Central-South African genotype, and in Caxias, with detection of (DENV)-2 belonging to the Asian/American genotype. The detection of CHIKV and DENV-2 is evidence that those viruses are maintained in arthropod vectors, and shows the epidemiological risk in the area for chikungunya cases and a possible increase of severe dengue cases, associated with the occurrence of dengue hemorrhagic fever.