1. Infectious Diseases Unit, Meir Medical Center, Kfar Saba, Israel
2. Department of Family Medicine, Sharon-Shomron District, Clalit Health Services, Kfar Saba, Israel
3. Sackler Medical School, Tel Aviv University, Tel Aviv, Israel
4. Clalit Health Services, Chief Physician’s Office, Tel Aviv, Israel
5. School of Public Health, University of Haifa, Haifa, Israel
6. Epidemiology Department and Biobank, Rambam Healthcare Campus, Haifa, Israel