
Herein we characterize the factors associated with the hospitalization and deaths of patients with chikungunya from 2017 to 2023 in Brazil. Methods: We used a retrospective case series using chikungunya virus records with suspected case criteria and positive laboratory tests according to the Ministry...

The Zika virus (ZIKV) is an arbovirus that has been associated with small outbreaks in several countries over the past decades. In 2015, ZIKV caused an important outbreak in Brazil that resulted in serious neurological complications, such as Guillain-Barré syndrome and microcephaly in newborns....

Emerging arboviruses such as Zika virus (ZIKV) and Chikungunya virus (CHIKV) remain significant public health threats. This study aimed to evaluate the antiviral potential of six organochalcogen compounds against ZIKV and CHIKV. Materials & methods...

The emergence of Zika virus (ZIKV) in the Americas in 2015 was associated with an increased incidence of congenital microcephaly [1, 2]. Prior to this outbreak, the largest known ZIKV outbreak occurred in French Polynesia in 2013–2014 where researchers observed an association between Guillain-Barré...

The identification of safety signals, such as anaphylaxis linked to the dengue vaccine in adolescents in Brazil, can undermine public trust and necessitate adjustments to vaccination strategies, such as for the strategy restricted to health units. This study compared the vaccination coverage of dengue...