Available data suggest that more than half of people with HIV get diagnosed at a late stage of infection, and that late diagnosis is more common among some migrant populations compared to non-migrants, resulting in poorer health outcomes and increased transmission.

For viral hepatitis, 34% percent of all new HBV diagnoses and 23% of HCV diagnoses made in 2023 were acquired outside the reporting country. Furthermore, a recent review found that prevalence of HBV (HBsAg) among migrant populations ranged from 0.9% to 31.7% across 11 EU/EEA countries. The background prevalence of HIV, HBV and HCV and coverage of prevention interventions vary over time and across countries of origin, resulting in very different demographic and epidemiological characteristics in migrant populations across EU countries.