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.
To call for an appointment at Mayo Clinic in Rochester, Minnesota simply call 1-507-284-2111 and a friendly Mayo Clinic person will patiently answer all your questions, guide you through the process, and make your appointment.
Mayo Clinic does not usually require a referral and their physicians will work closely with patients' hometown physicians. Most patients are treated on an outpatient basis with their evaluation, tests or treatments are done in the clinic by day, then they return home or to their lodgings at night.