State health officials say a three-week decline in COVID-19 cases is encouraging, but it doesn’t mean Hoosiers can let their guard down. State health commissioner Kristina Box says new guidance to schools, allowing looser quarantine rules if they adopt mask mandates, has played a role in reducing community spread in the broader community. But Indiana is still averaging more than three thousand new cases a day. And Box says based on what’s happened in other states, she expects to see a series of waves of new outbreaks, rather than an unbroken decline. She says Hoosiers can’t let their guard down but need to continue taking precautions.