Final answer:
Trichomoniasis is a common STD caused by Trichomonas vaginalis, leading to symptoms like itching, burning, and unusual discharge.
Explanation:
Trichomoniasis is a common sexually transmitted infection caused by the protozoan parasite Trichomonas vaginalis. Symptoms of trichomoniasis in women include itching, burning, redness, soreness of the genitals, and a characteristic vaginal discharge. Men with trichomoniasis may experience itching, irritation, burning after urination or ejaculation, and penile discharge.
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