| [penicillinase-producing neisseria gonorrhoeae isolated in lisbon 1982-1987]. | ppng strains were first detected in lisbon in 1982. most of the 88 ppng strains isolated since then in our laboratory were obtained from prostitutes. in this population, ppng prevalence underwent a dramatic increase, rising from 1.1% in 1983 to 8.2% in 1984, 19.2% in 1985, 13.1% in 1986 and 27% in 1987 (ten months). mics determined by agar dilution in a sample of 45 non-ppng strains were as follows: 0.063 less than mic mg/l less than 2 for penicillin, 0.125 less than mic mg/l less than 1 for amp ... | 1988 | 3141884 |
| high-level tetracycline resistant neisseria gonorrhoeae isolated in portugal. | the first high-level tetracycline resistance (mic > or = 16 mg/l) isolates of neisseria gonorrhoeae (trng) were reported in 1990 from patients attending a sexual transmitted disease (std) center in lisbon. the trng prevalence was 4% in 1991, 5.3% in 1992 and 10,8% in 1994, exploding to 52.2% in 1995. the tet m determinant was evaluated by pcr. the digests of pcrp using hpaii produced the restriction pattern 2 for all the strains, except one (pattern 3). 78.3% of the trng strains were beta-lactam ... | 1997 | 9296086 |