Risk for Invasive Streptococcal Infections among Adults Experiencing Homelessness, Anchorage, Alaska, USA, 2002–2015

• Published in: Emerging Infectious Diseases
• Main Authors: Emily Mosites, Tammy Zulz, Dana Bruden, Leisha Nolen, Anna Frick, Louisa Castrodale, Joseph McLaughlin, Chris Van Beneden, Thomas W. Hennessy, Michael G. Bruce
• Format: Article in Journal/Newspaper
• Language: English
• Published: Centers for Disease Control and Prevention 2019
• Subjects: homeless persons; homelessness; streptococcus; bacterial infections; group A Streptococcus; group B Streptococcus; Medicine; R; Infectious and parasitic diseases; RC109-216; Anchorage; Arctic; Alaska
• Online Access: https://doi.org/10.3201/eid2510.181408; https://doaj.org/article/5bb3250feea84451ba692581952af9f4

The risk for invasive streptococcal infection has not been clearly quantified among persons experiencing homelessness (PEH). We compared the incidence of detected cases of invasive group A Streptococcus infection, group B Streptococcus infection, and Streptococcus pneumoniae (pneumococcal) infection among PEH with that among the general population in Anchorage, Alaska, USA, during 2002–2015. We used data from the Centers for Disease Control and Prevention’s Arctic Investigations Program surveillance system, the US Census, and the Anchorage Point-in-Time count (a yearly census of PEH). We detected a disproportionately high incidence of invasive streptococcal disease in Anchorage among PEH. Compared with the general population, PEH were 53.3 times as likely to have invasive group A Streptococcus infection, 6.9 times as likely to have invasive group B Streptococcus infection, and 36.3 times as likely to have invasive pneumococcal infection. Infection control in shelters, pneumococcal vaccination, and infection monitoring could help protect the health of this vulnerable group.