Projeto que monitora a soroprevalência do vírus na capital paulista revela, em sua sétima fase, o número de pessoas que já tiveram contato com o vírus e/ou foram vacinadas
Fonte: Covid-19: 82% dos adultos de São Paulo têm anticorpos neutralizantes
anticorpos
COVID-19 Antibodies Can Disappear After 2-3 Months, Study Shows
Scientists in China studied 74 people with coronavirus, half symptomatic, half asymptomatic. Eight weeks after recovery, antibody levels fell to undetectable levels in 40% of asymptomatic people.
Fonte: COVID-19 Antibodies Can Disappear After 2-3 Months, Study Shows
Dengue virus (DENV)-specific antibodies enhance Brazilian Zika virus (ZIKV) infection | Read by QxMD
Anti-Flavivirus antibodies are highly cross-reactive and may facilitate Zika virus (ZIKV) infection through the antibody-dependent enhancement (ADE) mechanism. We demonstrate that dengue-specific antibodies enhance the infection of a primary Brazilian ZIKV isolate in FcγRII-expressing K562 cell line. In addition, we demonstrate that serum samples from dengue-immune pregnant women enhanced ZIKV infection. These findings highlight the need of epidemiological studies and animal models to further confirm the role of ADE in the development of congenital and neurological complications associated with Zika virus infections.
Fonte: Dengue virus (DENV)-specific antibodies enhance Brazilian Zika virus (ZIKV) infection | Read by QxMD
Interessante. A presença de anticorpos anti-flavivirus adquiridas devido a uma infecção pela dengue pode potencializar a gravidade de uma infecção subsequente por zika!
blog infectologia em geral 