Most sore throats are caused by colds, the flu, coxsackie virus or mono (mononucleosis). Bacteria that can cause pharyngitis in some cases: 1  Strep throat is caused by group A streptococcus.  Less commonly, bacterial diseases such as gonorrhea and chlamydia can cause sore throat.
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By Mayo Clinic Staff. The only preparation needed for marriage counseling is to find a therapist. You can ask your primary care doctor for a referral to a therapist. Loved ones, friends, your health insurer, employee assistance program, clergy, or state or local mental health agencies might offer recommendations.