The symptoms start to appear five to 14 days after exposure. Initial symptoms are fever, headache, and drowsiness, followed by disorientation and mental confusion. Respiratory issues can also be present during the early stages. Coma symptoms can manifest within 24 to 48 hours. Encephalitis, inflammation of the brain, is a potentially fatal complication of<unk> .<unk>  patients who have breathing difficulty are more likely than those without respiratory illness to transmit the virus, as are those who are more than 45 years of age. The disease is suspected in symptomatic individuals in the context of an epidemic outbreak.
Nipah virus infection
Adenovirus infection
Living with COVID-19
Epstein–Barr virus infection
Spanish flu
Hong Kong flu
Marburg virus disease
Swine influenza