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Background: Tularemia is a zoonotic infection caused by Francisella tularensis , an aerobic, facultative intracellular coccobacillus, encountered especially in the Northern hemisphere. F. tularensis is a pathogen of humans and hundreds of animal species. Patients and methods: A Belgian traveler returning from an adventurous vacation in Central Europe presents fever, flu-like symptoms, a skin ulcer with a necrotic center resembling an eschar on the left thigh and painful left inguinal lymphadenopathy. An enzyme linked immunosorbent assay developed by the National Reference Laboratory for Tularemia, Sciensano, Belgium, detected elevated Ig G antibodies against F. tularensis , while the rest of the serologies were negative. Results: A highly likely case of ulceroglandular tularemia is described and the differential diagnosis is discussed. Conclusion: The incidence of tularemia has been increasing throughout Europe in recent years. Physicians should be aware of this disease, its diversity of reservoirs, transmission routes and clinical presentations. [ABSTRACT FROM AUTHOR]

Ocrelizumab - a monoclonal anti-CD20 antibody used in treatment of multiple sclerosis (MS) - marks significant progress in treating autoimmune diseases but raises susceptibility to opportunistic infections due to hypogammaglobulinemia. A young MS patient developed osteomyelitis from persistent Ureaplasma urealyticum urethritis, which was diagnosed with specialized polymerase chain reaction and resolved with targeted antibiotics. A multidisciplinary approach is crucial for managing such infections., Competing Interests: At least one of the (co-)authors is a member of the editorial board of Journal of Bone and Joint Infection. The peer-review process was guided by an independent editor, and the authors also have no other competing interests to declare., (Copyright: © 2024 Fred Ruythooren et al.)