Transmission of Group A Streptococcus in Long-Term Care: An Outbreak Investigation

Am J Infect Control. 2024 Nov 20:S0196-6553(24)00849-6. doi: 10.1016/j.ajic.2024.11.008. Online ahead of print.

Abstract

We report two outbreaks comprising a cluster of 18 group A streptococcal infections across two nursing facilities. Point prevalence surveillance testing identified 8 of 18 cases, and whole genome sequencing validated transmission pathways. Infection prevention interventions at the facility level comprised symptomatic and asymptomatic carriage-based case finding, transmission-based precautions, and treatment to eradicate colonization.

Keywords: Cluster; gram positive infection; infection control; post-acute care; whole genome sequencing.