ISOLATION AND IDENTIFICATION OF BETA HEMOLYTIC STREPTOCOCCI

Duration: 15 min

Year Published: 1965

Creator: National Medical Audiovisual Center (Department of Health, Education, and Welfare)

Color: Color

Sound: Optical sound

Description: Accepted methods for collecting and transporting throat swab specimens and isolation of beta hemolytic streptococci are introduced. Laboratory procedures for culturing beta hemolytic streptococci include the preparation of pour-streak plates and examination of surface and subsurface growth for beta hemolytic streptococci. A series of photomicrographs of colonies are included which illustrate how various kinds of hemolysis can be differentiated.