Mayo Clinic

Original article: https://www.mayoclinic.org/img-20456971

.

Legal Conditions and Terms

Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below.

Advertising

Mayo Clinic is a nonprofit organization and proceeds from Web advertising help support our mission. Mayo Clinic does not endorse any of the third party products and services advertised.

Reprint Permissions

A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.

infectious-diseases-department-photos-3635221-0061R

Mayo Clinic Footer

Legal Conditions and Terms

Advertising

Reprint Permissions