A man receives his fourth dose of the coronavirus vaccine in a private nursing home in Petah Tikva, Israel, Tuesday, Jan. 4, 2022. Even in relatively small, wealthy Israel, an early global leader against the coronavirus pandemic, the omicron variant is outpacing the government's ability to make and execute clear pandemic public policy. What once was a straightforward regimen of vaccines, testing, contact tracing and distancing for the nation of 9.3 million has splintered into a zigzag of rules that seem to change every few days. (AP Photo/Ariel Schalit)
