Catalase negative Staphylococcus aureus.

Cellulitis due to catalase-negativeStaphylococcus aureus

“…On examination, the right leg was swollen and tense. This report and others [5] demonstrate that catalase production is not essential for survival of S. aureus in vitro or in vivo. General physical examination showed no other abnormality.…”

“…An ulcer surrounded by a large area of cellulitis was seen on the lateral aspect of the lower third of the leg. Extensive review of the literature reveals that only five previous isolations of (CNSA) have been previously reported [3][4][5][6][7]. After collection of relevant specimens, the patient was empirically started on intravenous cefazolin 1 g 6-hourly.…”

“…Apart from leukocytosis (white blood cell count 9.3 x 109/1) and a fasting blood sugar of 23.7 mmol/t the rest of the investigations were normal. A fourth isolate was obtained from a patient with chronic paronychia [5]. The organism showed golden yellow, opaque, circular, smooth, creamy colonies with beta-haemolysis on 5% sheep blood agar plate.…”

Characterization of a Catalase-Negative Methicillin-Resistant Staphylococcus aureus Strain

“…However, none of them has been characterized with molecular methods (1,2,7,10,12). We here describe a catalase-negative methicillin-resistant S. aureus (MRSA) isolate that was characterized by amplification and sequencing of the putative catalase gene.…”

First report of catalase-negative methicillin-resistant Staphylococcus aureus sepsis

“…Few catalase-negative S. aureus (CNSA) have been reported. [1][2][3][4][5][6] A 75-year-old male was admitted to our intensive care unit (ICU) from the urology department with sepsis syndrome (temperature 35 8C, shock and blood pH of 7.1). Urine and endotracheal aspirate cultures remained negative but blood culture yielded Gram-positive cocci.…”