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.
Do you need a doctor's referral for an appointment? Some specialty areas at Mayo require a doctor's referral, and some do not. Most insurance plans require a referral from a plan doctor in order to get access to Mayo Clinic. You should check with your insurance company or your doctor prior to seeking care at Mayo.
Verify the Patient Information, Referring Physician Information, check for Existing Referrals and click the Submit New Referral button. If no existing referrals are available you will be directed to Referral Submission/ Specialist Search. Referral Submission/ Specialist Search 1. Select the Type of Referral.