%0 Journal Article
%T Ongoing outbreak of hepatitis A associated with sexual transmission among men who have sex with men, Portugal, October 2023 to April 2024.
%A Rosendal E
%A von Schreeb S
%A Gomes A
%A Lino S
%A Grau-Pujol B
%A Magalhães S
%A Ricoca Peixoto V
%A Roque C
%A Moreno J
%A Maltez F
%A Almeida F
%A Sá Machado R
%A Marinho RT
%A Vasconcelos P
%A de Sousa R
%A Vieira Martins J
%J Euro Surveill
%V 29
%N 21
%D 2024 May
%M 38785087
%F 21.286
%R 1560-7917.ES.2024.29.21.2400272
%X An outbreak of hepatitis A is ongoing in Portugal, with 71 confirmed cases from 7 October 2023 to 24 April 2024. Most cases are male, aged 18-44 years, with many identifying as men who have sex with men (MSM) and reported as suspected sexual transmission. Phylogenetic analysis identified the subgenotype IA, VRD 521-2016 strain, last observed in an MSM-associated multi-country outbreak in 2016 to 2018. We wish to alert colleagues in other countries to investigate potential similar spread.