system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following is catalase positive?
assistant
The correct answer is  Catalase test is used mainly to differentiate between Staphylococcus(Catalase positive) and Streptococcus (Catalase negative). +ve Catalase test = Bubble formation due to release of nascent O2 from H2O2 by Catalse enzyme in the colony Catalase positive organisms Staphylococcus Pseudomonas aeruginosa Aspergillus fumigatus Candida Enterobacteriaceae except Shigella dysentry type 1