Step 1: Understanding the Concept:
Infant milk formulae can be contaminated with pathogenic bacteria.
Some bacteria cause food poisoning. Step 2: Key Formula or Approach:
No specific formula.
Need to know the important food poisoning bacteria. Step 3: Detailed Explanation:
Staphylococcus aureus is an important food poisoning bacterium.
It produces enterotoxins.
Micrococci and lactococci are not significant pathogens.
Yeasts are not major food poisoning bacteria.
Thus, Staphylococcus is the important food poisoning bacteria. Step 4: Final Answer:
Staphylococcus is the important food poisoning bacteria.
Hence, the correct option is (A).
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