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Isolation of viable monkeypox virus from anal and urethral swabs, Italy, May to July 2022
- Davide Moschese1 , Giacomo Pozza2 , Davide Mileto3 , Andrea Giacomelli2 , Miriam Cutrera3 , Maria Vittoria Cossu1 , Maddalena Matone1 , Martina Beltrami2 , Federica Salari3 , Spinello Antinori4 , Alessandra Lombardi3 , Giuliano Rizzardini1
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View Affiliations Hide AffiliationsAffiliations: 1 I Division of Infectious Diseases, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, Milan, Italy 2 III Division of Infectious Diseases, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, Milan, Italy 3 Laboratory of Clinical Microbiology, Virology and Bioemergencies, Luigi Sacco Hospital, ASST Fatebenefratelli Sacco, Milan, Italy. 4 Department of Biomedical and Clinical Sciences, Università degli Studi di Milano, Italy; III Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, Milan, Italy.Davide Moschesemoschese.davide asst-fbf-sacco.it
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Citation style for this article: Moschese Davide, Pozza Giacomo, Mileto Davide, Giacomelli Andrea, Cutrera Miriam, Cossu Maria Vittoria, Matone Maddalena, Beltrami Martina, Salari Federica, Antinori Spinello, Lombardi Alessandra, Rizzardini Giuliano. Isolation of viable monkeypox virus from anal and urethral swabs, Italy, May to July 2022. Euro Surveill. 2022;27(36):pii=2200675. https://doi.org/10.2807/1560-7917.ES.2022.27.36.2200675 Received: 23 Aug 2022; Accepted: 08 Sept 2022
Abstract
Anal and urethral samples from confirmed cases of monkeypox were screened for monkeypox virus (MPXV) by real-time PCR. Isolation of the virus was subsequently attempted in cell culture. Actively-replicating virus was demonstrated in 13 of 18 and 11 of 15 PCR-positive anal and urethral swabs, respectively, collected within 7 days from symptoms onset. Two asymptomatic secondary cases had detectable MPXV genetic material in urethral secretion and for one, MPXV was successfully isolated, supporting a potential MPXV sexual transmission hypothesis.
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