In transit illness.
D000293:Adolescent; D000337:Aerospace Medicine; D000368:Aged; D002648:Child; D004194:Disease; D004739:England; D005194:Family Practice; D005260:Female; D005335:Fever of Unknown Origin; D006801:Humans; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D014195:Travel