Police personnel queue up to get themselves inoculated with the Covid-19 coronavirus vaccine at a vaccination centre in Lahore on May 18. — AFP/File LAHORE: The Punjab government is facing multiple issues like a slow pace of vaccination and lack of proper screening of passengers at the airports in the wake of looming threats of the fourth wave of the Covid-19. Punjab Health Services Director General Haroon Jahangir directed the district health authorities to focus on the business sector to ward off the fourth wave of the coronavirus. Saying that the government had ensured uninterrupted supply of Covid vaccine to all districts, he expressed concern that a number of districts were far behind their daily vaccination targets of the first dose.