Guava Leaf Extract Exhibits Antimicrobial Activity in Extensively Drug-Resistant (XDR) .

Currently, a global health crisis is being caused by microbial resistance, in which plays a crucial role, being considered the highest-priority microorganism by the World Health Organization (WHO) for discovering new antibiotics. As a result, phytochemicals have emerged as a potential alternative to combat resistant strains, since they can exert antimicrobial activity through various mechanisms and, at the same time, represent a more natural and safe option. This study analyzes the antimicrobial effects of guava leaf extract in ten clinical isolates of extensively drug-resistant (XDR) , using the agar diffusion technique and the microdilution method to determine the minimum inhibitory concentrations (MICs).

Occurrence of Plasmid-Mediated Quinolone Resistance and Carbapenemase-Encoding Genes in Isolates from Nosocomial Patients in Aguascalientes, Mexico.

is a leading cause of healthcare-associated infections, which are related to substantial morbidity and mortality. The incidence of Plasmid-Mediated Quinolone Resistance (PMQR) determinants has been previously reported in this bacterium. However, there is limited information regarding the presence of PMQR and carbapenemase-encoding genes simultaneously.

Surviving on Environmental Multi-Species Biofilms in Swine Farms.

is the etiologic agent of porcine contagious pleuropneumonia, an important respiratory disease for the pig industry. has traditionally been considered an obligate pig pathogen. However, its presence in the environment is starting to be known.

Interaction With Swine Endothelial Cells.

is a swine (host) specific respiratory pathogen and the etiological agent of swine pleuropneumonia which affects pigs of all ages, many being asymptomatic carriers. This pathogen has high morbidity and mortality rates which generates large economic losses for the pig industry. Actinobacillus pleuropneumoniae is a widely studied bacterium, however its pathogenesis is not yet fully understood.

Incorporation of in Preformed Biofilms by Isolated From Drinking Water of Swine Farms.

, the etiological agent of porcine pleuropneumonia, represents one of the most important health problems in the swine industry worldwide and it is included in the porcine respiratory disease complex. One of the bacterial survival strategies is biofilm formation, which are bacterial communities embedded in an extracellular matrix that could be attached to a living or an inert surface. Until recently, was considered to be an obligate pathogen.

An evaluation of multidrug-resistant Escherichia coli isolates in urinary tract infections from Aguascalientes, Mexico: cross-sectional study.

Background: Uropathogenic Escherichia coli (UPEC) are one of the main bacteria causing urinary tract infections (UTIs). The rates of UPEC with high resistance towards antibiotics and multidrug-resistant bacteria have increased dramatically in recent years and could difficult the treatment.

Methods: The aim of the study was to determine multidrug-resistant bacteria, antibiotic resistance profile, virulence traits, and genetic background of 110 E.