Despite rising coronavirus cases across the nation, many people have been packing into some of their favorite hotspots over the summer, flouting social distancing guidance and rules as well as mask-wearing.

There have been several incidents across the country that have sparked criticism and warnings from leaders such as packed beaches in Florida and California in May and June and large outdoor parties in New York City and the Hamptons in July.

Crowding, specifically large gatherings where social distancing is difficult and attendees travel from outside the area are of particular concern, according to the Centers for Disease Control and Prevention (CDC). Risk increases with the number of people, length of the event and higher levels of community transmission.

While some people deliberately ignored the warnings from Day One, others who stuck to the social distancing rules may have relaxed their caution after seeing reports that the coronavirus curve was flattened in the spring, Allison Earl, an associate professor of psychology at the University of Michigan who specializes in health messaging, told ABC News

"People rely on their experts when it comes to an assessment of risk," she told ABC News. "People may recalibrate their judgment but they may not be accurate when they do."

Although it is impossible to change everyone's risk assessment, Earl and other experts say consistent messaging, which relies on education rather than fear, could help change these behaviors.

Read the full article at ABC News.