Methicillin-resistant Staphylococcus aureus (MRSA) is a major public health concern, and it responsible for both hospital community associated infections globally. In this study, we aimed at determining the prevalence pattern of resistance MRSA to commonly used antibiotics in Anyigba, Nigeria. This was based, cross-sectional study conducted between August 2017 February 2018. One hundred fifty r...

Thirty-two macrolide-resistant Streptococcus pyogenes isolates were found among 594 clinical isolates collected from 1990 to 1998 in Santiago, Chile, for an overall prevalence of 7.2%. Among the 32 resistant isolates, 28 (87.5%) presented the M phenotype and 4 (12. 5%) presented the MLS(B) phenotype. Serotyping and pulsed-field gel electrophoresis analysis showed genetic diversity among the res...

introduction: one of the most important agents in hospital-acquired infections is staphylococcus aureus. treatment of methicillin-resistant s. aureus (mrsa) infections with decreased susceptibility to vancomycin has recently been more difficult. the aim of this study was to evaluate the possible presence of vancomycin intermediate s. aureus (visa) and vancomycin- resistant s. aureus (vrsa) and ...

Background and Aims: Given the importance of aminoglycoside resistance in nosocomial and community infections caused by bacterial pathogenes such as Klebsiella pneumoniae (K. pneumoniae), the aim of this study was to determine the frequency of aac (6')- Ib and aac (3)- IIa, the genes encoding aminoglycoside modifying enzymes involved in aminoglycoside resistance. Material and Methods: A t...

Figure 1. Antimicrobial-resistant pathogens causing nosocomial infections in intensive care units [1]. Left, Drugs and the organisms resistant to them. Shaded bars denote the percentage of resistant isolates ( SD) during 1998–2002. Bullet points denote the percentage of resistant isolates during 2003 only. Right, No. of resistant isolates during 2003 and increase in the percentage of resistant ...

INTRODUCTION The indiscriminate use of antimicrobials has selected for the emergence of resistant strains. Many mechanisms contribute to the spread of antimicrobial-resistant genes, and integrons play a key role in this process. The aim of this study was to describe the serotypes and resistance profiles, and to characterize the presence of integrons in Salmonella strains isolated from Dourados,...

Herpes simplex virus (HSV) isolates were characterized from 8 AIDS patients in whom acyclovir and foscarnet therapy sequentially failed. The 6 postacyclovir (prefoscarnet) HSV isolates were resistant to acyclovir and susceptible to foscarnet. Of the 9 postfoscarnet isolates, 8 were foscarnet-resistant and acyclovir-susceptible, 1 was resistant to both drugs. Acyclovir- or foscarnet-resistant is...

background staphylococcus aureus is a common cause of infections among humans and animals and it is known as a community-acquired and nosocomial pathogen. most of the isolates contain lysogenic phages which are responsible for production of various virulence factors such as enterotoxins, staphylokinase, β-lysin, lipase, exfoliative toxin a and pantone-vlaentine leukociden (pvl). all staphylococ...

conclusions the results of this study indicated that a decrease in oprd gene expression is an important mechanism of resistance in carbapenem resistant pseudomonas aeruginosa isolated from severe burn patients with secondary infection. results our study showed that 94.2% of the isolates were resistant to imipenem, 99.5% to meropenem, and all were resistant to ertapenem. the oprd gene expression...