{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T03:18:58Z","timestamp":1793330338979,"version":"4.5.0"},"reference-count":53,"publisher":"American Medical Association (AMA)","issue":"17","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA"],"published-print":{"date-parts":[[2025,5,6]]},"abstract":"<jats:sec id=\"ab-joi250004-4\">\n                    <jats:title>Importance<\/jats:title>\n                    <jats:p>\n                      Invasive group A\n                      <jats:italic>Streptococcus<\/jats:italic>\n                      (GAS) infections are associated with substantial morbidity, mortality, and economic burden.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-joi250004-5\">\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To update trends in invasive GAS disease incidence rates in 10 US states between 2013 and 2022.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-joi250004-6\">\n                    <jats:title>Design, Setting, and Participants<\/jats:title>\n                    <jats:p>\n                      Clinical, demographic, and laboratory data for invasive GAS cases were collected as part of population-based surveillance in the Active Bacterial Core surveillance network covering 34.9 million persons across 10 US states. A case was defined as isolation of GAS from a normally sterile site or from a wound in a patient with necrotizing fasciitis or streptococcal toxic shock syndrome between January 1, 2013, and December 31, 2022. Demographic and clinical data were collected from medical record review. From 2013 to 2014, available isolates were\n                      <jats:italic>emm<\/jats:italic>\n                      typed and antimicrobial susceptibilities determined using conventional methods; from 2015 onward, whole-genome sequencing was used.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-joi250004-7\">\n                    <jats:title>Main Outcomes and Measures<\/jats:title>\n                    <jats:p>Incidence rates by sex, age, race, and selected risk factors; clinical syndromes, outcomes, and underlying patient conditions; and isolate characteristics, including antimicrobial susceptibility.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-joi250004-8\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Surveillance in 10 US states identified 21\u202f312 cases of invasive GAS from 2013 through 2022, including 1981 deaths. The majority of cases (57.5%) were in males. Among case-patients, 1272 (6.0%) were aged 0 to 17 years, 13\u202f565 (63.7%) were aged 18 to 64 years, and 6474 (30.4%) were 65 years or older; 5.5% were American Indian or Alaska Native, 14.3% were Black, and 67.1% were White. Incidence rose from 3.6 per 100\u202f000 persons in 2013 to 8.2 per 100\u202f000 persons in 2022 (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&amp;amp;lt;\u2009.001 for trend). Incidence was highest among persons 65 years or older; however, the relative increase over time was greatest among adults aged 18 to 64 years (3.2 to 8.7 per 100\u202f000 persons). Incidence was higher among American Indian or Alaska Native persons than in other racial and ethnic groups. People experiencing homelessness, people who inject drugs, and residents of long-term care facilities had substantially elevated GAS incidence rates. Among tested isolates, those nonsusceptible to macrolides and clindamycin increased from 12.7% in 2013 to 33.1% in 2022.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"ab-joi250004-9\">\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Invasive GAS infections increased substantially in 10 US states during a surveillance period from 2013 to 2022. Accelerated efforts to prevent and control GAS are needed, especially among groups at highest risk of infection.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1001\/jama.2025.0910","type":"journal-article","created":{"date-parts":[[2025,4,7]],"date-time":"2025-04-07T11:11:26Z","timestamp":1744024286000},"page":"1498","source":"Crossref","is-referenced-by-count":65,"title":["Invasive Group A Streptococcal Infections in 10 US States"],"prefix":"10.1001","volume":"333","author":[{"given":"Christopher J.","family":"Gregory","sequence":"first","affiliation":[{"name":"Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer Onukwube","family":"Okaro","sequence":"additional","affiliation":[{"name":"Division of Bacterial Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arthur","family":"Reingold","sequence":"additional","affiliation":[{"name":"California Emerging Infections Program, Oakland"},{"name":"Berkeley School of Public Health, University of California, Berkeley"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shua","family":"Chai","sequence":"additional","affiliation":[{"name":"California Emerging Infections Program, Oakland"},{"name":"Division of State and Local Readiness, US Centers for Disease Control and Prevention, Atlanta, Georgia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rachel","family":"Herlihy","sequence":"additional","affiliation":[{"name":"Colorado Department of Public Health & Environment, Denver"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan","family":"Petit","sequence":"additional","affiliation":[{"name":"Connecticut Department of Public Health, Hartford"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monica M.","family":"Farley","sequence":"additional","affiliation":[{"name":"Department of Medicine, Emory University School of Medicine and the Atlanta Veterans Affairs Medical Center, Atlanta, Georgia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lee H.","family":"Harrison","sequence":"additional","affiliation":[{"name":"Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathy","family":"Como-Sabetti","sequence":"additional","affiliation":[{"name":"Minnesota Department of Health, St Paul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruth","family":"Lynfield","sequence":"additional","affiliation":[{"name":"Minnesota Department of Health, St Paul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paula","family":"Snippes Vagnone","sequence":"additional","affiliation":[{"name":"Minnesota Department of Health, St Paul"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Sosin","sequence":"additional","affiliation":[{"name":"New Mexico Emerging Infections Program, New Mexico Department of Health, Santa Fe"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bridget J.","family":"Anderson","sequence":"additional","affiliation":[{"name":"New York State Department of Health, Albany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kari","family":"Burzlaff","sequence":"additional","affiliation":[{"name":"New York State Department of Health, Albany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tasha","family":"Martin","sequence":"additional","affiliation":[{"name":"Public Health Division, Oregon Health Authority, Portland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ann","family":"Thomas","sequence":"additional","affiliation":[{"name":"Public Health Division, Oregon Health Authority, Portland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William","family":"Schaffner","sequence":"additional","affiliation":[{"name":"Vanderbilt University School of Medicine, Nashville, Tennessee"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H. 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