Biochemical Test of Corynebacterium diphtheriae

Biochemical Test of Corynebacterium diphtheriae

Biochemical Test of Corynebacterium diphtheriae Basic Characteristics Properties (Corynebacterium diphtheriae) CAMP Negative (-ve) Capsule Non-Capsulated Catalase Positive (+ve) Cetrimide Test Negative (-ve) Citrate Negative (-ve) Coagulase Negative (-ve) Flagella Non-Flagellated Gas Variable Gelatin Hydrolysis Negative (-ve) Gram Staining Positive (+ve) H2S Positive (+ve) Hemolysis Weak Beta hemolysis Indole Negative (-ve) Motility Non-Motile MR (Methyl Red) … Read moreBiochemical Test of Corynebacterium diphtheriae

Pathogenesis and Clinical manifestations of Corynebacterium diphtheriae

Pathogenesis and Clinical manifestations of Corynebacterium diphtheriae

Pathogenesis of Corynebacterium diphtheriae In nature, C diphtheriae occurs in the respiratory tract, in wounds, or on the skin of infected persons or normal carriers. It is spread by droplets or by contact to susceptible individuals; the bacilli then grow on mucous membranes or in skin abrasions, and those that are toxigenic start producing toxin. … Read morePathogenesis and Clinical manifestations of Corynebacterium diphtheriae

Laboratory diagnosis, treatment and prevention of Corynebacterium diphtheriae

Laboratory diagnosis, treatment and prevention of Corynebacterium diphtheriae

Laboratory diagnosis of Corynebacterium diphtheriae Specimen Dacron swabs from the nose, throat, or other suspected lesions must be obtained before antimicrobial drugs are administered. Swabs should be collected from beneath any visible membrane. The swab should then be placed in semisolid transport media such as Amies. Microscopy Smears stained with alkaline methylene blue or Gram stain … Read moreLaboratory diagnosis, treatment and prevention of Corynebacterium diphtheriae

Habitat and Morphology of Corynebacterium diphtheriae

Habitat and Morphology of Corynebacterium diphtheriae

Habitat and Morphology of Corynebacterium diphtheriae Habitat of Corynebacterium diphtheriae Found in nasopharynx as well as in skin lesions, which actually represent a reservoir for the spread of diphtheria. Also found in mouth, throat, nose, skin and wound of infected person. Animals do not easily contract diphtheria. Patients carry toxigenic organism upto 3 months after infection. … Read moreHabitat and Morphology of Corynebacterium diphtheriae