Brazil has a well-established immunization program in which vaccines are provided through
the Public Health System free of charge to the whole population, obtaining high coverage …

Zika virus (ZIKV) and chikungunya virus (CHIKV) are arthropod-borne viruses with
significant pathogenicity, posing a substantial health and economic burden on a global …

During 2015 to 2016, Brazil reported more Zika virus (ZIKV) cases than any other country,
yet population exposure remains unknown. Serological studies of ZIKV are hampered by …

Background Since their emergence in the Americas, chikungunya (CHIKV) and Zika (ZIKV)
viruses co-circulate with dengue virus (DENV), hampering clinical diagnosis. We …

Zika virus infections can cause a range of neurologic disorders including congenital
microcephaly. However, while Zika infections have been notified across all regions in Brazil …

Background From late 2016 to early 2021, cases of Haff disease, a rare cause of
rhabdomyolysis, possibly due to poisoning by palytoxin-like compounds in seafood, were …

Background Low-income urban communities in the tropics often lack sanitary infrastructure
and are overcrowded, favoring Aedes aegypti proliferation and arboviral transmission …

We investigated an outbreak of exanthematous illness in Maceió by using molecular
surveillance; 76% of samples tested positive for chikungunya virus. Genetic analysis of 23 …

Introduction The complex and growing problem generated by the rapid expansion of
unplanned urban areas includes high population density and increased infestation by …

After a chikungunya outbreak in Salvador, Brazil, we performed a cross-sectional,
community-based study of 1,776 inhabitants to determine chikungunya virus (CHIKV) …