The conquest of tuberculosis. A contribution of American veterinary medicine to human welfare.
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Animals↗
Biomedical subjects
K Faler
Publications and source records attributed to K Faler.
Standardizing antimicrobial disk sensitivity testing.
Before antimicrobial sensitivity testing, any pathogens must be isolated by streaking the clinical specimen on a plate of nutritive medium. Selecting a drug based on tests of a mixed culture from which a pathogen has not been isolated encourages unnecessary treatment. A plate of Mueller-Hinton agar is swabbed with an inoculum from a standardized broth culture. Drug-impregnated paper disks are applied to the plate at least 3 cm apart and at least 2 cm from the plate's edge. The zone of inhibition varies with each drug and is measured, after overnight incubation at 35-37 C, with the aid of over-the-shoulder lighting and a dark background.
Aerobiosis↗
Improved detection of intestinal parasites.
Three decades of accumulated data by the Center for Disease Control indicate that formalin-ether extraction is the method of choice for routine screening of stool samples. This technic detects operculated eggs, nematode larvae and 20% more ova and cysts than the flotation method.
Animal Diseases↗
Campylobacter jejuni enteritis: efficacy of antimicrobial and antimotility drugs.
We analyzed retrospectively the illnesses of 82 patients with Campylobacter jejuni enteritis to ascertain the efficacy of antimicrobials and drugs that inhibit gastrointestinal motility. Forty-four patients were treated with only supportive measures consisting of diet modification and fluids; 22 others received an antimotility agent for at least 48 h; the remaining 16 were given an antimicrobial at or near the time of therapeutic intervention. The three groups were similar in terms of severity of symptoms and signs. There was a greater need for secondary antimicrobial therapy because of static or worsening illness in the group treated with antimotility agents (8/22, 36%) than in the others (4/44,9%; 2/16, 13%: p less than 0.02). Furthermore, six patients treated initially and 10 treated secondarily with erythromycin or tetracycline had illnesses of shorter duration than did untreated controls paired by age, sex, length and severity of symptoms and signs, hematochezia, and antimotility therapy (p less than 0.05). Thus treatment of C. jejuni enteritis with erythromycin or a tetracycline shortened the illness, but antimotility agents impeded the resolution of the infection.
Adolescent↗