Andorra Sees Record 58 Chlamydia Cases in 2025, Highest in Five Years

Andorra reported 58 chlamydia cases in 2025—the highest in five years—while gonorrhea notifications fell to between 13 and 14 cases, syphilis dropped to eight, and no new syphilis or HIV infections occurred, according to the health ministry's surveillance report covering 2021-2025.

Data from the Prevention, Promotion and Health Surveillance department, compiled from six of seven microbiology labs, confirm chlamydia rose to 58 cases last year from 45-48 in 2024 and far lower earlier, with an incidence rate of 65.13 per 100,000 residents. The increase centred on younger people: around 30 cases in the 20-29 age group, mostly women, plus six among girls aged 15-19. Gonorrhea declined after peaking at 28 in 2023, with 21-31 cases in 2024 and 13-14 in 2025. Syphilis notifications eased from 11 to eight, while 2024 and 2025 saw zero cases following three syphilis and two HIV infections in 2023. Two Trichomonas vaginalis cases matched 2024 levels and stayed below the five-year high of four in 2022.

Health Minister Helena Mas told parliament last year that rising sexually transmitted infections stemmed from more unprotected sex, higher partner numbers, and expanded testing. Over a year ago, the ministry introduced rapid tests at primary care centres, adding syphilis, hepatitis B and C to HIV screening.

The report also notes two mpox cases, four human papillomavirus infections, two meningitis cases within normal limits, and nine non-meningococcal meningitides, up from three. Three cholera cases and 12 food poisonings—double 2024's total, with seven from home consumption of mushrooms or fish—were recorded. Influenza incidence reached 1,868.8 per 100,000 residents, driven by overlapping seasonal peaks in late 2024-25 and early 2025-26; confirmed cases numbered 1,659, up sharply from 608.

Varicella cases surged to 44—the highest in years and up from 29 in 2024—with five school outbreaks prompting a vaccination drive for adolescents born before 2016, when the vaccine joined the child schedule. Doctor Mireia García from health surveillance said the illness is milder in children than adults but noted better reporting has improved data accuracy. Influenza and varicella accounted for 95% of frequent disease notifications.

Officials continue monitoring 2026 trends.