Browsing by Author "LAM, M"

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    INVITRO ANTIBACTERIAL ACTIVITY OF TROSPECTOMYCIN (U-63,366F) AGAINST ANAEROBIC-BACTERIA AND AEROBIC GRAM-POSITIVE COCCI IN CHILE
    (ELSEVIER SCIENCE INC, 1991) MONTIEL, F; KALTWASSER, G; PINTO, ME; LAM, M
    The in vitro activity of trospectomycin sulfate was compared with those of several antimicrobials, against 301 anaerobic bacteria and 613 aerobic Gram-positive cocci. Trospectomycin was about 4- to 32-fold more active than was spectinomycin. Trospectomycin exhibited consistently good activity against all Bacteroides fragilis group isolates, except Bacteroides vulgatus, and against all other anaerobes comparable or higher to that of clindamycin. The trospectomycin's activity was most similar to that of vancomycin, even against methicillin-resistant Staphylococcus aureus and methicillin-resistant Staphylococcus epidermidis.
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    INVITRO SUSCEPTIBILITY TO 10 ANTIBIOTICS OF METHICILLIN-RESISTANT (MRSA) STAPHYLOCOCCUS-AUREUS IN CHILE
    (1988) MONTIEL, F; KALTWASSER, G; VALDIVIESO, C; LAM, M
    The in vitro activity of 10 antibiotics was determined for 231 strains of methicillin resistant (MRSA) Staphylococcus aureus. Oxacillin was a very good antibiotic to determine methicillin-resistance. Its agreement with methicillin-resistance was in all the strains tested. On the contrary, the correlation with nafcillin was established only in 95% of the strains tested. Cloxacillin and flucloxacillin are not good methicillin-resistance indicators. The strains tested against macrolides, such as erythromycin, and lincosamides, such as lincomycin and clindamycin presented a susceptibility of 68, 78, and 80%, respectively. All tested strains were susceptible to vancomycin.