48 children infected with hypervirulent MRSA after bouncy castle party near Dublin
An outbreak of a rare strain of drug-resistant bacteria was linked to a single outdoor social gathering in autumn 2025.
What to know
- A rare hypervirulent strain of MRSA (t016-ST22-MRSA-IV) infected 48 children in eastern Ireland, with 47 cases linked to a single outdoor gathering featuring bouncy castle use in autumn 2025.
- Four children were hospitalized; most infections affected the legs and thighs; no deaths occurred.
- The outbreak strain is uncommon in Ireland and produces Panton-Valentine leucocidin, a virulence factor associated with severe infections.
- Early case recognition, rapid clinical care, and infection prevention measures were key to controlling the outbreak.
McGlacken-Byrne et al. Lead outbreak investigation teamRegional public health authorities (eastern Ireland) Outbreak response authoritiesWorld Health Organization (WHO) International health agency
How it unfolded 1 development · click the chart to see its coverage articlesposts
-
1
Social media discussion of outbreak findings
The outbreak report circulated on social media platforms, drawing commentary on the unusual and concerning nature of a bouncy castle-linked disease outbreak.
“48 kids were infected with MRSA at a party in Ireland. The call was coming from inside the (bouncy) house.”
— elizabethjacobs.bsky.social -
E
48 kids were infected with MRSA at a party in Ireland. The call was coming from inside the (bouncy) house.
-
-
background
Outbreak report surfaces in medical news coverage — Medical outlets published coverage of the MRSA outbreak investigation, bringing the incident to broader public attention.
-
background
Outbreak investigation accepted for publication in Euro Surveillance — The formal outbreak investigation and epidemiological analysis was accepted for publication in Euro Surveillance, Europe's journal on infectious disease surveillance, providing detailed findings on the rare hypervirulent MRSA strain and control measures.
-
background
Outbreak investigation documented; all 48 cases confirmed as identical strain — Phone interviews were conducted with parents or guardians of each identified case to obtain demographic, clinical, and exposure information. All 48 identified cases were confirmed to exhibit an identical strain type, t016-ST22-MRSA-IV, which produces Panton-Valentine leucocidin. Thirty-three cases were treated by general practitioners; 15 attended hospital emergency departments or day wards, with four hospitalized.
-
background
Regional health authorities notified of hospital presentations — Public health authorities in eastern Ireland were notified in autumn 2025 of several hospital presentations by children and adolescents with skin and soft tissue infections. An outbreak was declared following these initial reports.
-
background
Outbreak occurs at outdoor gathering with bouncy castles near Dublin — Forty-seven children and adolescents attended an outdoor social gathering in autumn 2025 that featured bouncy castle use. The event would later be identified as the source of the MRSA outbreak.