Probable non-vector-borne transmission of Zika virus, Colorado, USA.
Foy BD., Kobylinski KC., Chilson Foy JL., Blitvich BJ., Travassos da Rosa A., Haddow AD., Lanciotti RS., Tesh RB.
Clinical and serologic evidence indicate that 2 American scientists contracted Zika virus infections while working in Senegal in 2008. One of the scientists transmitted this arbovirus to his wife after his return home. Direct contact is implicated as the transmission route, most likely as a sexually transmitted infection.