Symptoms usually occur 2 to 5 days after you have come in contact with the bacteria.
Note: There may be no symptoms.
The health care provider will perform a physical exam and look inside your mouth. This may reveal a gray-to-black covering (pseudomembrane) in the throat, enlarged lymph glands, and swelling of the neck or larynx.
Tests used may include:
American Academy of Pediatrics Committee on Infectious Diseases. Recommended immunization schedules for children and adolescents--United States, 2008. Pediatrics. 2008 Jan;121(1):219-20.
Advisory Committee on Immunization Practices. Recommended adult immunization schedule: United States, October 2007-September 2008. Ann Intern Med. 2007 Nov 20;147(10):725-9.