"A dozen California Republican Party staff members, who arrived last week in Ohio ahead of the state's delegates, have fallen ill with the virus, said Jim Brulte, chairman of the state GOP.
"So far, none of the state's delegates appears to have caught the virus.
“'Our best guess is that this came from California,'Brulte said." https://www.washingtonpost.com/news/to-your-health/wp/2016/07/19/norovirus-strikes-the-republican-national-convention/
The cruise ship attorneys always blame the airlines too. Never admit fault unless there is no longer a choice.