*Corresponding author at: NIH, PDMI/NICHD, 31 Center Drive, Room 2A29, Bethesda, MD 20892, USA., schneerr@exchange.nih.gov (R. Schneerson).
1Yael Kalmus, Irit Garberg, Na’ama Tirosh, Einat Alter—Study Headquarter,Tel Hasomer; Clalit Health Services: Ana Gutratz—Community Clinic, Netivot;Hana Shalev, Rabcha Krinawi, Sabach el Krinawi—Child Community Center,Rahat; Shlomo Chamny, Nar’am Huri—Community Clinic, Tel Sheva; YizhakLotem, Erena Shirer—Child Community Center, Ramla; Oded Poznansky, RinaYechieli—Community Clinic, Lod; Akiva Fradkin, Lora Arbiv—Child Community Cen-ter, Or Yehuda; Israel Keisar, Havi Korman, Haya Buchnik— Community Clinic,Modi’in Ilit (Brachfeld); Jawdat Abumoch, Alimi Walid, Hulud Abu-Husain, RandaNajar—Jeser el Zarka; George Ghrayeb, Vered Altman, Roz Rohana— CommunityClinic, Daliyat el-Carmel; Kamal Halabi, Yulia Askin—Child Community Center,Haifa; Haim Kristal, Judit Ya’acobi, Sima Rogani—Child Community Center, KiryatShmona;YossiEzer(deceased),ShlomitAmar—CommunityClinic,Rajar;DanMiron,Ha—Emek Medical Center, Afula; Abdelrazek Marei, Dalia Gebara–Community Clinic, Kallansawa; Maccabi Health Services: Yackov Berkun, Malka Siman-Tov—Community Clinic, Modi’in Ilit (Kiryat Sefer); Anat Beit-Or—Clinical LaboratoryServices, Medical Division; Irit Meir, Erika Pinco, Diana Taran—Central Labo-ratories; Leumit Health Services: Shlomo Zvieli, Moris Biton, Carol Siman-Tov,Netivot—“Asiaˮ Community Health Services; Nathan Keller, Gill Smollan, EsterMelamed–Department of Clinical Microbiology, Sheba Medical Center; ValentinVasilev, Rachel Japheth–Reference Center for Shigella, Ministry of Health,Jerusalem; Valentina Boyko—Women and Children’s Health Research Unit, GertnerInstitute for Epidemiology and Health Policy Research, Sheba Medical Center.