{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T18:27:05Z","timestamp":1793125625378,"version":"4.5.0"},"reference-count":87,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Methicillin-susceptible Staphylococcus aureus (MSSA) remains a major pathogen in neonatal intensive care units (NICUs), with colonization and infection posing significant risks. MSSA colonization occurs in up to 42.8% of neonates, while 12\u201341% of healthcare personnel also carry MSSA, contributing to nosocomial transmission. MSSA accounts for approximately 12% of neonatal S. aureus bloodstream infections, with mortality rates up to 20.5%, particularly among very-low-birth-weight infants. This review analyzes the molecular attributes, epidemiology, risk factors, clinical presentations, decontamination methods, and treatment alternatives for MSSA infections in newborns. MSSA strains show considerable genetic heterogeneity, being distinguished by a wide variety of sequence types (STs) and Staphylococcal Protein A types (SpA). They harbor several pathogenicity genes\u2014including hemolysins, superantigens, adhesins, and Panton\u2013Valentine leukocidin (PVL)\u2014which are implicated in severe infections, while biofilm-associated genes enhance environmental persistence. Prematurity, low birth weight, prolonged hospitalization, and exposure to invasive devices are key risk factors. Active surveillance and decolonization programs have achieved reductions of up to 73% in MSSA infections. \u03b2-lactam antibiotics remain first-line therapy, with adjunctive aminoglycosides reserved for severe cases. Ongoing genomic surveillance and targeted preventive strategies are essential to reduce MSSA-associated morbidity and mortality in this vulnerable population.<\/jats:p>","DOI":"10.3390\/ijms262311430","type":"journal-article","created":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T11:43:22Z","timestamp":1764157402000},"page":"11430","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Molecular Epidemiology, Clinical Manifestations, Decolonization Strategies, and Treatment Options of Methicillin-Susceptible Staphylococcus Aureus Infection in Neonates"],"prefix":"10.3390","volume":"26","author":[{"given":"Aikaterini","family":"Nikolaou","sequence":"first","affiliation":[{"name":"Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45500 Ioannina, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Baltogianni","sequence":"additional","affiliation":[{"name":"Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45500 Ioannina, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-7287-7401","authenticated-orcid":false,"given":"Niki","family":"Dermitzaki","sequence":"additional","affiliation":[{"name":"Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45500 Ioannina, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chrysanthi Maria","family":"Tsiogka","sequence":"additional","affiliation":[{"name":"Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45500 Ioannina, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikitas","family":"Chatzigiannis","sequence":"additional","affiliation":[{"name":"Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45500 Ioannina, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0967-8673","authenticated-orcid":false,"given":"Foteini","family":"Balomenou","sequence":"additional","affiliation":[{"name":"Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45500 Ioannina, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vasileios","family":"Giapros","sequence":"additional","affiliation":[{"name":"Neonatal Intensive Care Unit, School of Medicine, University of Ioannina, 45500 Ioannina, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1007\/s00281-011-0301-9","article-title":"Staphylococcus aureus: An introduction","volume":"34","author":"Myles","year":"2012","journal-title":"Semin. 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