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Passage of <jats:italic>N. meningitidis<\/jats:italic> into the bloodstream can cause invasive meningococcal disease (IMD), a potentially life-threatening illness with rapid onset that generally presents as meningitis, septicemia or both. Serogroup W IMD has been increasing in prevalence in recent years, and observations suggest that it may present with atypical signs and symptoms. Herein, a literature search was performed to identify trends in atypical serogroup W IMD presentation in order to review those that are most prevalent. Findings indicate that the most prevalent atypical presentations of serogroup W IMD include acute gastrointestinal (GI) symptoms, septic arthritis and bacteremic pneumonia or severe upper respiratory tract infection, notably epiglottitis. Atypical clinical presentation is associated with higher case fatality rates and can lead to misdiagnoses. Such risks highlight the need for clinicians to consider IMD in their differential diagnoses of patients with acute GI symptoms, septic arthritis or bacteremic pneumonia, primarily in regions where serogroup W is prevalent.<\/jats:p>","DOI":"10.1017\/s0950268819002152","type":"journal-article","created":{"date-parts":[[2020,1,27]],"date-time":"2020-01-27T04:14:57Z","timestamp":1580098497000},"source":"Crossref","is-referenced-by-count":37,"title":["Atypical presentation of invasive meningococcal disease caused by serogroup W meningococci"],"prefix":"10.1017","volume":"148","author":[{"given":"C.","family":"Stinson","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.","family":"Burman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8723-8980","authenticated-orcid":false,"given":"J.","family":"Presa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Abalos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2020,1,27]]},"reference":[{"key":"S0950268819002152_ref47","unstructured":"Villena R and Santolaya ME (2017) Chilean experience with serogroup W outbreak and meningococcal ACWY conjugate vaccines. 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