Primary septic arthritis of the knee caused by Neisseria meningitidis serogroup B in an elderly patient. Case report and review of the literature.

Purpose: Primary meningococcal arthritis (PMA) represents an uncommon clinical presentation of meningococcal infection, mainly reported among young people. Herein, a case of PMA of the knee in an elderly patient is described.

Case Presentation: On January 2022, an 87-year-old patient arrived at hospital with continuous fever persisting for three days and a picture of pain, swelling, redness, and warmth of her left knee.

Cytographic changes on BC-6800 Haematological Analyzer related to the presence of in peripheral blood. A new tool to suspect candidemia?

Background: We studied the quantitative and cytographic changes that the presence of () in peripheral blood (PB) samples causes on the Mindray BC-6800 Haematological Analyzer.

Methods: A simulated in vitro candidemia was obtained by adding a different amount of to discarded remnants of PB samples. Quantitative data and cytographic features were evaluated immediately as well as after 120 and 240 min of the yeast addition.