Earnshaw Sarah, Mendez Andrea, Monnet Dominique L, Hicks Lauri, Cruickshank Marilyn, Weekes Lynn, Njoo Howard, Ross Stacie
European Centre for Disease Prevention and Control, Stockholm, Sweden.
Lancet Infect Dis. 2013 Dec;13(12):1003-4. doi: 10.1016/S1473-3099(13)70315-3. Epub 2013 Nov 17.