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.
1 Use our online referral service when it's convenient for you, or gain electronic access to patient appointment times and subsequent clinical notes and test results.  Expertise. Mayo Clinic has tertiary and quaternary expertise found in few other medical centers, including novel treatment options and clinical trials.
A referral is authorization from the patientâs Primary Care Physician (PCP) for the patient to see a specialist. A PCP is a family doctor, internist, or pediatrician. You only need a referral if your insurance company requires you to have one. The best way to know for sure is to contact your insurance company.