(CNN) — Out of tens of thousands of monkeypox cases around the world this year, there have been a dozen deaths linked to the virus, and for the first time, some of them have been outside Africa, in countries where the virus doesn't usually spread.More than 31,000 cases of monkeypox have been reported globally since January 1, more than 10,000 of them in the United States.
Most people have recovered at home with no lasting problems. But doctors are working to understand why monkeypox can be serious and, rarely, fatal.According to the latest numbers from the World Health Organization, there have been two monkeypox deaths in Spain, one in Brazil, one in Ecuador and one in India -- all so-called nonendemic countries.
So far, none of these deaths have been in the US.In a recent Q&A on social media, Dr. Rosamund Lewis, technical lead on the monkeypox response for WHO, saysthe lack of clear understanding around disease severity is one reason why infectious diseases are so challenging."When people are exposed to infectious agents, they respond in different ways," she said.
Some won't develop any symptoms or only mild problems like a low-grade fever. They get better and move on with their lives. Others, though, go on to develop very serious complications. "We're seeing that now," she said.Lewis says WHO has asked every country for more information on the circumstances surrounding any monkeypox deaths.Two previously healthy men die in SpainTwo recent cases in particular have raised an alarm.A report from Dr.