Professor Jacov Lavee receives a fourth dose of coronavirus disease (COVID-19) vaccine as part of a trial in Israel, as Health Ministry is considering offering the second booster to the elderly and immuno-compromised at Sheba Medical Center in Ramat Gan, Israel December 27, 2021. REUTERS/Ronen Zvulun A surge of Omicron infections could see Israel reaching herd immunity, the country’s top health official said on Sunday as daily cases continued to climb. The highly transmissible Omicron variant has brought a surge in coronavirus cases across the globe. Worldwide infections have hit a record high, with an average of just over a...