persistent infection

Why do Some People Develop Long COVID?

2 Comments / Basic virology, Gertrud Rey / By

by Gertrud U. Rey Long COVID is a chronic manifestation of SARS-CoV-2 infection, and it is most commonly characterized by lingering fatigue, brain fog, memory impairment, and confusion. Although it is unclear how the viral infection leads to long COVID, experts speculate that one or more of the following factors may contribute: an inability to …

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Five year persistence of Ebolavirus in humans

2 Comments / Basic virology / By

The current outbreak of Ebolavirus disease in Guinea, which began in February 2021, may have originated from a survivor of the 2013-16 outbreak in the same country. Phylogenetic analysis of genome sequences revealed that viruses from the current outbreak group with the Makona variant, which caused the 2013-16 epidemic. The new isolates are most closely …

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