HONG KONG—Hong Kong announced stringent new coronavirus restrictions and record new infections on Tuesday, while a shortage of vegetables added to the misery as truck drivers who tested positive for COVID-19 were unable to bring them from mainland China. The Asian financial hub reported a record 625 coronavirus cases on Tuesday, with cases likely to continue rising rapidly, authorities said. There were 2,600 infections over the past two weeks compared with just two in December. Responding to the worrying trend, Hong Kong’s leader Carrie lam said public gatherings would be limited to two people from four currently, while churches and hair salons would close from Thursday, joining a slew of venues already closed. Lam also announced a ban on private gatherings of more than two families, though it was unclear how authorities would enforce it. “The time has come for Hong Kong to take some tough measures,” Lam told a …