here in the u.s. are counterfeit. to know if yours is real, the national institute for occupational safety and health says look for distinct markings like an approval number, model number, and the institute's name or logo. >> important to look out for that information. phil lipof, back with us in new york city where officials are seeing encouraging signs -- new cases dropping 15% citywide. phil, there's also a new rule taking effect today to make those at-home rapid tests reimbursable. >> reporter: right, whit. starting today, private health insurance plans are required to cover up to eight at-home tests per person. that means a family of five could be reimbursed up to 40 tests per month, though insurers tell us it could be a while before that system is up and running. whit? >> all right, phil, thanks. be sure to watch "this week" tomorrow morning. martha raddatz goes one-on-one with surgeon general vivek murthy. we move on to australia, where a high court is deciding as early as tonight whether unvaccinated tennis star novak