AdvertisementRare monkeypox outbreak in U.K., Europe and U.S.: What is it and should we worry?03:04Download AudioResumeUpdated May 20, 2022Michaeleen DouclefffacebookEmailSymptoms of the monkeypox virus are shown on a patient's hand, from a 2003 case in the United States. In most instances, the disease causes fever and painful, pus-filled blisters. New cases in the United Kingdom, Spain and Portugal are spreading possibly through sexual contact, which had not previously been linked to monkeypox transmission. (Getty Images)This article was originally published on May 18, 2022.