Culture media for peussis is –
Correct Answer: Bordet - Gengou medium
Description: Ans. is 'd' i.e., Bordet-Gengou medium B. peussis .Morphology - Gram negative - Coccobacillus - Capsulated - Non-motile - Bipolar metachromatic granules are present. . Culture - Strict aerobe - Bordet-Gengou glycerine potato-blood agar medium is commonly used. - Incorporation of diamidine fluoride and penicillin (Lacey's DFP medium) makes it more selective. - Transpo media a) Modified stua's medium b) Mischulow's charcol agar - Produces bisected pearls or mercury drops colones. - Confluent growth present and "aluminium paint" appearance. . Pathogenicity B. peussis causes peussis or whooping cough. . Laboratory diagnosis - Specimen The best specimen is collected by nasopharyngeal aspiration. - Culture Culture of nasopharyngeal secretions remains the gold standard of diagnosis. . Treatment DOC Macrolide (Erythromycin, Azithromycin, Clarithromycin) Alternative --111- Cotrimoxazole
Category:
Microbiology
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