<unk>  is fatal in 40 to 70 percent of cases, though some outbreaks have had 100% case fatality rate. Sequelae Those who survive the initial<unk>  often struggle with debilitating long-term neurological sequelae, including memory loss, impaired cognition, seizures, convulsions, and personality changes. Moreover,<unk>  virus is known to be able to persist and lie dormant in survivors and to re-activate many months or years after the initial<unk> . Deaths from re-activation of latent<unk>  virus have been reported.
Nipah virus infection
Adenovirus infection
Living with COVID-19
Epstein–Barr virus infection
Spanish flu
Hong Kong flu
Marburg virus disease
Swine influenza