Doctors are working to understand why monkeypox can be serious and, rarely, fatal. A patient here receives a monkeybox vaccination on August 3, in West Hollywood, California.
Mandatory Credit: Richard Vogel/AP
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Global experts race to understand rare cases when monkeypox leads to death
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.
