The patient is believed to have visited Burundi in central Africa before returning home in Sweden.
How many trains, planes and automobiles did he travel on and potentially pass along the virus? How many restrooms did he use and someone came along behind him to use the toilet? How many hotels did he stay at and get body fluids on the sheets for the maids and the next guests? How many times did he eat and leave his dishes for the busboy to clean up? How about his family and where he works in Sweden?
The article states that WHO considered a global alert. Well, yeah.