A Covid-19 surge ignited in parts of the US by the highly contagious Delta variant and vaccine hesitancy has led to new mask mandates and deep confusion among some people about which guidance to follow.

In Los Angeles County, leaders have reinstated an indoor mask mandate, even for the fully vaccinated. Officials in Houston and New Orleans also raised coronavirus alert levels this week and told people to mask up.

In Florida, however, Governor Ron DeSantis said on Thursday children will not be required to wear masks in school there this fall, arguing that "we need our kids to breathe." Hours later, White House press secretary Jen Psaki told reporters: "If I were a parent in Florida, that would be greatly concerning to me."

"Everyone is confused about what they should be doing," said Daniel Blacksheare, a 20-year-old in Santa Monica, California, who said he was infected twice last year. "I don't understand why we have to suddenly wear a mask again."

Read the full Reuters story here.