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Unformatted text preview: Otitis media. Otitis media is infection of the middle ear accompanied by earache. Numerous bacteria may cause this problem including Streptococcus pneumoniae, Haemophilus influenzae , and Staphylococcus aureus. Antibiotic therapy is usually indicated. Pertussis (whooping cough). Pertussis is caused by the Gram-negative bacterium Bordetella pertussis. Transmitted by airborne droplets, this organism multiplies in the trachea and bronchi and causes paroxysms of cough. A rapid inrush of air following a paroxysm results in the high-pitched whooping sound. Treatment is rendered with erythromycin and other antibiotics, and immunization may be performed with killed pertussis bacilli in the DPT vaccine or acellular bacterial fragments in the DTaP vaccine. Tuberculosis. Tuberculosis is caused by Mycobacterium tuberculosis , an acid-fast rod. The bacteria have large amounts of mycolic acid in their cell walls, which permits them to retain...
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- Fall '08