The U.S. government’s Covid-19 strategy has been to rely on developing vaccines and treatments, rather than emphase measures to limit the spread of the disease. That could delay the return to normal life for Americans. One report suggests that if the vaccine program has any hiccups, we could be living with the virus well into 2023. Health reporter Naomi Kresge reports on the cost of the government’s focus on developing drugs rather than changing behavior.