[1] Inst Hlth Carlos III, Natl Ctr Microbiol, Lab Arbovirus & Imported Viral Dis, Ctra Pozuelo Majadahonda Km 2, Madrid 28220, Spain
[2] Columbia Univ, Mailman Sch Publ Hlth, Ctr Infect & Immun, New York, NY USA
[3] Inst Hlth Carlos III, Natl Ctr Microbiol, Serol Sect, Madrid 28220, Spain
[4] Univ Hosp Virgen Nieve, Microbiol Serv, Granada, Spain
[5] Inst Hlth Carlos III, Natl Ctr Microbiol, Serv Parasitol, Madrid 28220, Spain