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Aphthous ulcers cause:
  1. Herpes simplex virus 2
  2. Coxsackie virus
  3. Cretinism
  4. Clefts
Explanation
Answer: B - Aphthous ulcers cause coxsackie virus. The ulcers are bright red with white or yellow centers triggered by allergies, hormonal changes, or stress. Ulcers are treated with topical steroids and heal within three weeks. Frequent ulcer recurrences, should be tested for Behcet’s syndrome and diabetes mellitus.
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