http://news.stv.tv/west-central/288489-ebola-alert-as-detainees-tested-at-dungavel-immigration-centre/
http://www.bbc.com/news/uk-scotland-glasgow-west-28807589
“Negative Ebola test for Dungavel detainee in South Lanarkshire”
Sooner or later one of these negatives will be a false negative.