[1] Minist Hlth, Ararat Reg Hlth Dept, Natl Informat & Anal Ctr, Yerevan, Armenia
[2] Minist Hlth, Ararat Reg Hlth Dept, Sanit Epidemiol Svcs, Yerevan, Armenia
[3] Minist Hlth, Ararat Reg Hlth Dept, Hlth Care Syst, Yerevan, Armenia
[4] Minist Hlth, Ararat Reg Hlth Dept, Republ Sanit & Epidemiol Svc, Yerevan, Armenia
[5] WHO, European Reg, Copenhagen, Denmark
[6] Ctr Dis Control & Prevent, Natl Ctr Infect Dis,Div Parasit Dis, Epidemiol Branch,Malaria Sect, Epidemiol Program Off,Div Int Hlth, Atlanta, GA 30333 USA