 New diagnoses are highest in gay/bisexual men, with an estimated 51% of new diagnosis reporting male same-sex sexual activity as the probable route of infection.Between 2009 and 2018 there was a 32% reduction in new HIV diagnosis, attributed by Public Health England (PHE) to better surveillance and education.PHE has described an "outbreak" in Glasgow amongst people who inject drugs, and has campaigns targeting men who have sex with men in London and other major cities.