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Background: In Europe and Italy, marginalized communities have a higher risk for both contracting sexually transmitted infections (STI) and progressing towards adverse outcomes., Objectives: This study focuses on the screening of HIV, HBV, HCV, and syphilis among homeless individuals and agricultural migrant workers living in Apulia, Italy. It aims to assess STI prevalence and investigate factors that might hinder return to collect test results. In addition, it explores STI knowledge, attitudes, and practices among these vulnerable populations., Methods: A cross-sectional study was conducted from September 1, 2022, to September 30, 2023. Participants were recruited from community health centers and migrant camps. Blood tests for HBV, HCV, HIV, and syphilis were performed, and Knowledge, Attitude, and Practices (KAP) survey were conducted via face-to-face interviews. Descriptive and logistic regression analyses were used to assess factors influencing the return for test results., Results: A total of 149 persons were recruited, including 64 agricultural migrant workers and 85 homeless people. Overall, 24.8% (n = 37) tested positive for at least one infection, and only 50.3% (n = 75) of the screened participants returned to collect their test results. Significant disparities in STI knowledge and healthcare access were observed between the two populations, with only 14.1% (n = 9) of migrants having access to primary healthcare. At multivariable analysis, the strongest predictor for not returning for test results was being positive for HCV., Conclusions: Among homeless people and agricultural migrant workers, STI prevalence was high, and only half of the population returned to collect test results. The study underscores the urgent need for targeted interventions and policy reevaluation to address healthcare disparities in marginalized communities., Competing Interests: The authors have no competing interests to declare., (Copyright: © 2024 The Author(s).)

Lactococcus garvieae is a human opportunistic pathogen with low virulence, but it is a well-known pathogen in aquaculture. A total of 21 human infections have been reported in the literature, mostly endocarditis. Automated methods can wrongly identify this microorganism as Enterococcus spp with a non-standard phenotype, leading to an underestimation of the incidence of this infection. The route of infection could be the ingestion of raw fish, grilled fish or fresh dairy products. We describe the first case of L. garvieae mitral valve endocarditis in Italy, in a patient with mitral valve repair with autologous pericardium, mechanic prosthetic aortic valve and colonic diverticulosis.