Publications by authors named "Andre Luiz Sa Oliveira"
Chikungunya virus infection in the southernmost state of Brazil was characterised by self-limited transmission (2017-2019) and a larger 2021 outbreak.
Mem Inst Oswaldo Cruz
August 2023
Background: Chikungunya is a mosquito-borne virus that has been causing large outbreaks in the Americas since 2014. In Brazil, Asian-Caribbean (AC) and East-Central-South-African (ECSA) genotypes have been detected and lead to large outbreaks in several Brazilian states. In Rio Grande do Sul (RS), the southernmost state of Brazil, the first cases were reported in 2016.
View Article and Find Full Text PDFThe influence of meteorological variables on the oviposition dynamics of Aedes aegypti (Diptera: Culicidae) in four environmentally distinct areas in northeast Brazil.
Mem Inst Oswaldo Cruz
July 2020
Article Synopsis
- Fluctuations in climate impact the abundance of Aedes aegypti mosquitoes, specifically influenced by factors like precipitation, temperature, and humidity.
- A time series study was conducted using data from multiple sites in Recife and Fernando de Noronha, utilizing geo-referenced ovitraps to collect mosquito eggs and analyzing meteorological data from satellite sources.
- Results showed that precipitation positively correlated with egg abundance after a month, with humidity and low wind speed significantly affecting egg counts in certain areas.
Zika virus detection, isolation and genome sequencing through Culicidae sampling during the epidemic in Vitória, Espírito Santo, Brazil.
Parasit Vectors
May 2019
Background: Zika virus (ZIKV) has been isolated from many mosquito species in nature, but it is believed that the main vectors in urban environments are species of the genus Aedes. Here, we detected and isolated ZIKV in samples from Aedes aegypti, Aedes taeniorhynchus and Culex quinquefasciatus, collected during the Zika epidemic in Vitória, southeast Brazil. Using quantitative real-time polymerase chain reaction, ZIKV detection was performed in mosquito samples collected from February to April 2016.
View Article and Find Full Text PDFSpatial analysis of reported new cases and local risk of leprosy in hyper-endemic situation in Northeastern Brazil.
Trop Med Int Health
July 2018
Objective: To analyse the spatial distribution of the incidence of leprosy and identify areas at risk for occurrences of hyper-endemic disease in Northeastern Brazil.
Methods: Ecological study using municipalities as the analysis unit. Data on new cases of leprosy came from the Health Hazard Notification System (SINAN).