People are still going to grocery stores, pharmacies. Lots of people break quarantine and visit others. In some areas stores and places of worship are still ope

People are still going to grocery stores, pharmacies. Lots of people break quarantine and visit others. In some areas stores and places of worship are still open. And we don’t isolate people outside the home, so people spread to family/roommates. Further, the virus can take 5-14 days to show symptoms, and people don’t go for a test immediately. So confirmed cases lag actual infections.