The following points highlight the three types of cultural medium used in clinical microbiology. The types are: 1. Un-Inoculated Culture Medium 2. Inoculated Culture Medium Showing Colonies 3. Medium for Biochemical Identification Test . 1. Un-Inoculated Culture Medium: (A) Basal Medium: (l) Peptone water (Fig. 10.1) — almost colourless liquid, dispensed in 4″ x ½” […]
Cultural Medium and Clinical Microbiology
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Reactions of Antigen-Antibodies in Bacteria
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In this article we will discuss about the Reactions of Antigen-Antibodies in Bacteria. When an antigen combines with its specific antibody in presence of an electrolyte (NaCl) in an optimum concentration at an optimal pH and temperature (37°C), the antigen and antibody complex forms an insoluble precipitate. Important tests for antigen-antibody reactions include precipitation, agglutination, […]
Laboratory Diagnosis of Sexually Transmitted Diseases (STDs)
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In this article we will discuss about the laboratory diagnosis of various sexually transmitted diseases (STDs). The various sexually transmitted diseases whose diagnosis has been discussed are: 1. Urethritis 2. Genital Ulcers 3. Vaginal Discharge. Sexually Transmitted Disease # 1. Urethritis: Causative agents of urethritis are listed in Table 16.1: Laboratory diagnosis: Specimen: Urethral, vaginal, […]
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