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Bacteriology questions for NEET PG

27 Bacteriology questions from the Microbiology section of the Recallab bank, each with a verified answer, every option explained and a reference to a current edition. 3 are published in full below.

• A man, after skinning a dead animal, developed a pustule on his hand. A smear prepared from the lesion showed Gram Positive Bacilli in long chains positive for McFadyean's reaction. The most likely…Infectious diseases · #259 · answer and explanation
• A patient with 70% burns develops greenish discolouration of the dressings with a sweet grape-like odour on day six. Culture of a wound swab on nutrient agar produces colonies with a blue-green…Pseudomonas aeruginosa in burns · #50230 · answer and explanation
• Three weeks after an episode of bloody diarrhoea following unpasteurised milk, a man develops ascending symmetrical weakness with areflexia. Which organism, and what links the two illnesses?Campylobacter jejuni · #50530 · answer and explanation
• A man on long-term prednisolone has a cavitating lung lesion and a brain abscess. Sputum shows branching, beaded Gram-positive filaments that stain with a MODIFIED Ziehl-Neelsen using 1 per cent…Nocardia · #50531 · in the app
• A farmer who handles hides develops a painless ulcer with a black necrotic centre and marked surrounding oedema. Polychrome methylene blue staining of the exudate shows blue bacilli surrounded by a…Bacillus anthracis · #50532 · in the app