[1] Chaim Sheba Med Ctr, Ctr Geog Med, IL-52621 Tel Hashomer, Israel
[2] Tel Aviv Univ, Sackler Fac Med, IL-69978 Tel Aviv, Israel
[3] Carmel Hosp, Dept Family Med, IL-34362 Haifa, Israel
[4] Bnai Zion Med Ctr, Infect Dis & Travel Clin, IL-31048 Haifa, Israel
[5] Technion Israel Inst Technol, Bruce Rappaport Fac Med, IL-31096 Haifa, Israel
[6] Chaim Sheba Med Ctr, Cent Virol Lab, IL-52621 Tel Hashomer, Israel
[7] Soroka Med Ctr, Infect Dis Inst, IL-84101 Beer Sheva, Israel
[8] Ben Gurion Univ Negev, Fac Hlth Sci, IL-84105 Beer Sheva, Israel
[9] SHARIV Israeli Overseas Med Serv Ltd, Tel Aviv, Israel