Arbovirus outbreak in a rural region of the Brazilian Amazon

• Autor(a) principal: Carvalho, Vanessa Lima
• Data de Publicação: 2022
• Outros Autores: Azevedo, Raimunda do Socorro da Silva, Carvalho, Valéria Lima, Azevedo, Rafael da Silva, Henriques, Daniele Freitas, Cruz, Ana Cecília Ribeiro, Vasconcelos, Pedro Fernando da Costa, Martins, Lívia Caricio
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Digital do Instituto Evandro Chagas (Patuá)
• Texto Completo: https://patua.iec.gov.br/handle/iec/4535
• topic: Arbovírus / patogenicidade; Infecções por Arbovirus / transmissão; Surtos de Doenças; Infecções por Alphavirus / transmissão; Infecções por Bunyaviridae / transmissão; Santa Bárbara do Pará (PA); Assentamento Expedito Ribeiro (PA)

Background: An outbreak of febrile illness was reported from January to February 2018 in the Expedito Ribeiro Settlement, ​​Santa Bárbara do Pará municipality, Pará State, Brazil. Objective: This study aimed to investigate the pathogenic agent responsible for the outbreak and the circulation of arboviruses in the region. Study design: We analyzed 94 individuals through laboratory tests for arboviruses. Forty out of 94 individuals were asymptomatic but were living with or near febrile cases, and 55 participants were symptomatic. Results: Our results showed that 51.1% of the investigated individuals were positive for arboviruses (Oropouche, Mayaro, and Chikungunya), of which 77.8% were symptomatic. We detected 93.7% of positive cases for Oropouche infection, 2.1% for Mayaro fever, and 4.2% were positive for both Oropouche and Chikungunya infection. Conclusion: Oropouche virus was mainly responsible for the outbreak; however, we also detected a few Chikungunya and Mayaro fever cases. Serologic assays showed evidence of arboviruses circulation of different genera in the area.