What is Monkeypox and How Does it Spread?

A sporadic disease called monkeypox, a much less severe cousin of smallpox is spreading worldwide. According to the World Health Organization, more than 250 cases have been reported in 16 countries. Experts say it is spread by close and prolonged contact with an infected individual.

In the United States, the first case of monkeypox in 2022 was diagnosed in a patient hospitalized in Massachusetts who had recently traveled to Canada in private transportation. In 2021, two people traveling from Nigeria to the US were diagnosed with the disease, according to the Centers for Disease Control and Prevention.

The CDC said that cases in other parts of the world than Africa are typically linked to international travel or imported animals infected with pox.

Several cases of monkeypox reported in the UK have been among people who had no known travel or contact with others, but there is no cause for alarm, US Surgeon General Dr. Vivek Murthy said Thursday on CNN's "New Day."

"At this time, we don't want people to worry," Murthy said. "These numbers are still small; we want (people) to be aware of (the) symptoms, and if they have any concerns to reach out to their doctor."