[1] King Saud Med City, Minist Hlth, Prevent & Control Infect Adm, POB 2897, Riyadh 11196, Saudi Arabia
[2] Natl Res Ctr, Community Med Res Dept, 33 El Buhouth St, Cairo 12622, Egypt
[3] King Saud Med City, Res & Innovat Ctr, POB 2897, Riyadh 11196, Saudi Arabia
[4] Al Faisal Univ, Minist Hlth, POB 50927, Riyadh 11533, Saudi Arabia
[5] Al Faisal Univ, Coll Med, POB 50927, Riyadh 11533, Saudi Arabia
[6] Emory Univ, Rollins Sch Publ Hlth, Hubert Dept Global Hlth, 1518 Clifton Rd, Atlanta, GA 30322 USA
[7] Kyung Hee Univ, Div Infect Dis, Seoul 446701, South Korea