28d • Multiple choice answers
🧪 Answer Reveal: Poll Question of the Day
Question:
Which of the following is CAMP positive?
✅ Correct Answer:
C) Streptococcus agalactiae
🧠 Explanation:
Streptococcus agalactiae (Group B Strep) is:
• CAMP positive 🧪
• Produces CAMP factor that enhances hemolysis of Staphylococcus aureus
• Creates the classic arrowhead-shaped zone of hemolysis on blood agar
🔬 What about the other options?
A) S. aureus ❌
• Used in the CAMP test
• Produces β-hemolysin, but is NOT CAMP positive
B) S. pyogenes ❌
• CAMP negative
• Instead: bacitracin sensitive + PYR positive
💡 Quick Recall Tip:
👉 “CAMP = Group B”
👉 Think: agalactiae = CAMP positive
🔥 Meanwhile:
• pyogenes = PYR positive + bacitracin sensitive
• agalactiae = CAMP positive
👇 Did you get it right?
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🧪 Answer Reveal: Poll Question of the Day
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