A 36-year-old woman was scheduled for a vitrectomy of her left eye due to an epiretinal membrane (ERM) secondary retinal vasoproliferative tumor. Visual acuity (VA) 20/20 in the right and 20/80 left. Before surgery, patient’s vision had improved (20/20). Fundus examination tomographic images revealed spontaneous release ERM. ERM usually presents after cryotherapy photocoagulation. This is first...

OBJECTIVES Fifty-four methicillin-resistant Staphylococcus aureus (MRSA) ST398 isolates from unrelated diseased swine collected all over Germany were comparatively investigated for their antimicrobial resistance and virulence properties, and for their genomic relatedness. METHODS MICs of 30 antimicrobial agents were determined by broth microdilution. Resistance and virulence genes were detect...

Since the late 1990s, the prevalence of erythromycin-resistant Streptococcus pyogenes has significantly increased in several European countries. Between January 1999 and December 2002, 1,577 isolates of S. pyogenes were recovered from children with tonsillopharyngitis living in various areas of Western Greece. Erythromycin resistance was observed in 379 (24%) of the 1,577 isolates. All erythrom...

Twenty-three group A streptococci (GAS) recovered from population-based invasive GAS surveillance in the United States were erythromycin-resistant, inducibly clindamycin-resistant and lacked known macrolide-resistance determinants. These 23 isolates, representing 4 different clones, contained a broad host-range plasmid carrying the erm(T) methylase gene which has not been previously detected in...

Twenty-three isolates of group A streptococci (GAS) recovered from population-based invasive GAS surveillance in the United States were erythromycin resistant, inducibly clindamycin resistant, and lacked known macrolide resistance determinants. These 23 isolates, representing four different clones, contained a broad-host-range plasmid carrying the erm(T) methylase gene, which has not been detec...

The susceptibility of viridans group streptococci to macrolides was determined. Thirteen isolates (17%) were resistant to erythromycin. Five strains carried an erm gene that was highly homologous to that in Tn917. Four strains had mefE genes that coded erythromycin efflux ability.

BACKGROUND In order to study the resistance mechanisms to aminoglycosides, tetracyclines and erythromycin, we investigated the genetic determinants on 85 Streptococcus spp., Staphylococcus spp., and Enterococcus spp. isolates collected from 46 hospitals of Argentina over a two-year period. METHODOLOGY The MICs to amikacin, gentamicin, kanamycin, and streptomycin, tetracycline and erythromycin...

Mycobacterium abscessus subsp abscessus is the most common respiratory pathogen among the rapidly growing non-tuberculous mycobacteria (NTM) and is also the most feared due to its well-deserved reputation for being refractory to antibiotic therapy. M. abscessus subsp abscessus has multiple innate antibiotic resistance mechanisms, but the most important one described so far is an inducible eryth...

compensate for one another, although there is no evidence of true biochemical redundancy. The genomes of lower organisms, such as Caenorhabditis elegans, Drosophila melanogaster and Danio rerio, harbor single ERM orthologues; in fact, ERMs appeared evolutionarily during the transition to multicellularity and an ERM-like protein is encoded by the genome of the choanoflagellate Monosiga brevicoli...