The number of people with HIV in Guernsey hit a record high last year – while very few people have either syphilis or gonorrhoea.
The most recent data for sexually transmitted infections shows that in 2025 there were 72 people with HIV known to staff at the Orchard Centre – up one from last year’s previous record
The total includes both newly diagnosed people and people moving to the Bailiwick who had already been diagnosed with HIV, said Public Health.
The syphilis diagnostic rate per 100,000 fell to just three people – the lowest number of positive cases recorded since 2019, while the gonorrhoea diagnostic rate fell to 7.5 per 100,000 population.
This is also the lowest number of positive cases recorded since 2019, but Public Health urged caution with these figures as the very low numbers mean that small changes have a disproportionate effect on the rates.
There has been a consistent downward trend in the number of chlamydia cases detected, but Public Health has warned that this may be down to limited screening rates.
Chlamydia is the most common bacterial sexually transmitted infection in Guernsey and in England, with rates substantially higher in young adults than any other age group.
However, Guernsey’s rates are below that of England which may be down to young women accessing screening and sexual health services off-island or online.
Guernsey’s rate of chlamydia infections in women is 580 per 100,000, and in men it is 628 per 100,000.
The data has been published as part of the annual report into the Guernsey and Alderney Sexual Health and Reproduction Strategy.
Dr Jenny Rivers-Moore, Associate Specialist in Public Health and Sexual and Reproductive Health Strategic Lead, said the information “provides an important baseline against which we can measure future progress and continue to ensure that services meet the needs of our community”.
Laura Brouard, Service Lead for the Orchard Centre – Guernsey’s sexual health clinic – said demand for their services continues to grow, but staff “remain committed to ensuring islanders can access the support they need”.
Fiona Hardy, Service Lead for Choices – a Guernsey based sexual health and contraception clinic -said the annual report has highlighted the “value of partnership working and the positive impact that high-quality education, prevention and clinical services can have across the community”.
