Ampicillin killing curve patterns for ampicillin-susceptible nontypeable Haemophilus influenzae strains by the agar dilution plate count method
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چکیده
منابع مشابه
Ampicillin resistance in Haemophilus influenzae
Fourteen out of 150 (9.3%) consecutive strains of Haemophilus influenzae isolated on culture of sputum in the Bacteriology Department, Belfast City Hospital, during 1982/83 were found to be ampicillin-resistant (beta-lactamase-producing). Susceptibility testing to other antibiotics of these ampicillin-resistant strains showed that cefuroxime, cefotaxime, gentamicin, and amoxycillin with clavula...
متن کاملSpurious ampicillin resistance by testing Haemophilus influenzae with agar containing supplement C.
Ampicillin resistance (minimal inhibitory concentration >/=10 mug/ml) in the absence of beta-lactamase activity by Haemophilus influenzae was noted in tests performed with Mueller-Hinton agar containing one lot of supplement C. All strains, except five with known resistance due to beta-lactamase activity, were inhibited by 0.6 mug or less of ampicillin per ml of chocolatized blood agar.
متن کاملDiversity of ampicillin resistance genes and antimicrobial susceptibility patterns in Haemophilus influenzae strains isolated in Korea.
By Etest determination of the susceptibilities of 229 Haemophilus influenzae strains isolated in Korea to 10 antibiotics, the isolates were found to be antibiotic nonsusceptible in the following order: ampicillin (58.1%), trimethoprim-sulfamethoxazole (52%), cefaclor (41.1%), clarithromycin (25.8%), chloramphenicol (14.0%), amoxicillin-clavulanic acid (13.5%), meropenem (11.7%), cefixime (10.9%...
متن کاملCharacterization of an ampicillin-resistant Haemophilus influenzae type B.
A 28-year-old female in Denver was found in early 1974 to have frontal sinusitis, osteomyelitis, and bacteremia due to Haemophilus influenzae, type B. The minimal inhibitory concentration of ampicillin for this organism was 100 mug/ml and the minimal bactericidal concentration was >100 mug/ml. It was inhibited by chloramphenicol at 0.4 mug/ml. Further studies demonstrated that ampicillin and me...
متن کاملMeningitis due to Haemophilus influenzae resistant to ampicillin and chloramphenicol.
A case of ampicillin and chloramphenicol resistant Haemophilus influenzae meningitis successfully treated with cefotaxime is described.
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1990
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.34.6.1079