[1] Soroka Univ, Med Ctr, Pediat Infect Dis Unit, IL-84101 Beer Sheva, Israel
[2] Soroka Univ, Med Ctr, Dept Otolaryngol, IL-84101 Beer Sheva, Israel
[3] Soroka Univ, Med Ctr, Clin Microbiol Labs, IL-84101 Beer Sheva, Israel
[4] Ben Gurion Univ Negev, Fac Hlth Sci, Beer Sheva, Israel