Monkeypox is a viral, zoonotic, emerging infectious disease that has become the most significant orthopoxviral infection among humans since the eradication of smallpox. It is endemic in Central and West Africa, and since May 2022 it has caused a multi-country outbreak in six continents. So far, no clinical cases of this disease have been observed in Poland. Monkeypox can be transmitted by any person, regardless of gender identity or sexual preferences, through direct contact with the secretion from skin lesions or through fomites contaminated with infectious material. Therefore, people infected with the monkeypox virus require isolation until the skin lesions heal completely and the scabs fall off, which is equivalent to the end of their infectivity. The paper presents a study of the first nine clinical cases of monkeypox in Poland, along with photographic documentation. All patients were young men, the vast majority of whom had contact with multiple sexual partners, and presented a higher prevalence of human immunodeficiency virus (HIV) infection than in the general population. The course of the disease was self-limited and no specific antiviral treatment was required by any of the patients. Nonetheless, there was a change in the route of transmission of the infection to sexual contact and an atypical clinical course of the disease, which resulted both in skin lesions initially appearing in the anogenital area, skin lesions occurring at various stages of development, and the appearance of skin lesions before the onset of general symptoms. In one of the patients, skin changes were not observed at all.
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