Aedes vittatus, vector que transmite el virus de la fiebre amarilla, el dengue, el zika y el chikungunya, se detectó por primera vez en enero de 2020 en la localidad de Ramón de las Yaguas del municipio Santiago de Cuba, lo que constituyó el primer registro en la provincia del mismo nombre. Este halla...
ABSTRACT OBJECTIVE To analyze the number of yellow fever vaccine doses administered before and during the covid-19 pandemic in Brazil. METHODS This is an ecological, time series study based on data from the National Immunization Program. Differences between the median number of yellow fever vaccine d...
Abstract | Introduction: Arthropod-borne viruses (arboviruses) cause morbidity and mortality in humans and domestic animals worldwide. The percentage of population immunity or susceptibility to these viruses in Ecuador is unknown. Objectives: To investigate the proportion of Ecuadorian populations with I...
Dengue is the most important arthropod-borne viral disease worldwide. Infection with any of the four dengue virus (DENV) serotypes can be asymptomatic or lead to disease with clinical symptoms ranging from undifferentiated and self-limiting fever to severe dengue disease, which can be fatal in some cases...
BACKGROUND Southeast Brazil has recently experienced a Yellow Fever virus (YFV) outbreak where the mosquito Haemagogus leucocelaenus was a primary vector. Climatic factors influence the abundance of mosquito vectors and arbovirus transmission. OBJECTIVES We aimed at describing the population dynamics ...
Brasil,
Culicidae/clasificación,
Culicidae/virología,
Bosques,
Insectos Vectores/clasificación,
Insectos Vectores/virología,
Dinámica Poblacional,
Estaciones del Año,
Temperatura,
Fiebre Amarilla,
Virus de la Fiebre Amarilla/genética,
Virus de la Fiebre Amarilla/aislamiento & purificación
Ferreira, Milene Silveira;
Júnior, Pedro Soares Bezerra;
Cerqueira, Valíria Duarte;
Rivero, Gabriela Riet Correa;
Júnior, Carlos Alberto Oliveira;
Castro, Paulo Henrique Gomes;
Silva, Gilmara Abreu da;
Silva, Wellington Bandeira da;
Imbeloni, Aline Amaral;
Sousa, Jorge Rodrigues;
Araújo, Ana Paula Sousa;
Silva, Franko de Arruda e;
Tesh, Robert B;
Quaresma, Juarez Antônio Simões;
Vasconcelos, Pedro Fernando da Costa.
BACKGROUND Non-human primates contribute to the spread of the yellow fever virus (YFV) and the establishment of transmission cycles in endemic areas. OBJECTIVE To describe the severe histopathological aspects of YFV infection, 10 squirrel monkeys were infected with YFV and blood, brain, liver, kidney,...
Nos últimos anos observamos a emergência e reemergência de algumas doenças em diferentes países e territórios das Américas, incluindo o Brasil, destacando neste estudo, a Febre Amarela. A epidemia de Febre Amarela silvestre que atingiu a Região Sudeste do Brasil em 2017, e a ocorrência de óbito...
Abstract INTRODUCTION: Insect cell cultures play an essential role in understanding arboviral replication. However, the replicative efficiency of some of these viruses such as dengue (DENV), yellow fever (YFV), and chikungunya (CHIKV) in a new cellular substrate (Lulo) and in the other two recognized ce...
