Viruses used to date include retrovirus, lentivirus, adenovirus, adeno-associated virus, and herpes simplex virus. Other viral causes include influenza A and B, measles, adenovirus and respiratory syncytial virus (RSV). It contains a human adenovirus serotype 5 vector (Ad5) with the glycoprotein gene from ZEBOV. Viruses linked to this can include; hepatitis C, cytomegalovirus, paramyxovirus, influenza A and adenovirus. Rotavirus, norovirus, adenovirus, and astrovirus are known to cause viral gastroenteritis. It delivers a functional copy of the p53 gene using an engineered adenovirus. An adenovirus vaccine is a vaccine against adenovirus. Infection by human adenovirus accounts for 65% to 90% of cases of viral conjunctivitis. Within six hours, 99.999% of the adenovirus particles were inactivated. Patients with compromised immune systems are especially susceptible to severe complications of adenovirus infection. A combination of conjunctivitis and tonsillitis is particularly common with adenovirus infections. One of these vaccines is being tested as a prophylactic against the acute-respiratory disease adenovirus. He suffered a severe immune response after having received an adenovirus vector. Prevention is by vaccinating for canine adenovirus, distemper, parainfluenza, and "Bordetella". Swyer-James syndrome is a rare complication of obliterative bronchiolitis caused by measles or adenovirus.