Results 11 to 20 of about 5,136 (212)

Characterization of Mycobacterium tuberculosis heteroresistance by genotyping

International Journal of Mycobacteriology, 2020
Background: Heteroresistance is the coexistence of susceptible and resistant strains in the same individual, considered the preliminary step for total resistance, and can stem from mixed infection or clonal heterogeneity.
Lida Jouca de Assis Figueredo, Isabela Neves de Almeida, Claudio José Augusto, Valéria Martins Soares, Philip Noel Suffys, Wânia da Silva Carvalho, Silvana Spíndola de Miranda   +6 more
doaj   +3 more sources

Investigation of Colistin Heteroresistance and Some Factors Affecting Heteroresistance in Carbapenem-Resistant A. baumannii Strains [PDF]

Mediterranean Journal of Infection, Microbes and Antimicrobials, 2017
Introduction: Colistin can be used in patients infected with carbapenem-resistant Acinetobacter baumannii complex (CR-ABC), but recently resistance to colistin and heteroresistance have been reported.
Deniz GAZEL, Müşerref TATMAN OTKUN
doaj   +3 more sources

Bacteremia caused by staphylococci with inducible vancomycin heteroresistance [PDF]

Clinical Infectious Diseases, 1999
The clinical significance of bacteremia due to vancomycin- heteroresistant staphylococci and a rapid laboratory screening method were examined; 203 strains of staphylococci isolated from patients with clinically significant bacteremia were screened by ...
Ho, PL, Wong, SSY, Woo, PCY, Yuen, KY
core   +5 more sources

An Investigation of Colistin Heteroresistance in <i>Klebsiella pneumoniae</i> Isolates in Iran. [PDF]

Biomed Res Int
Background According to the World Health Organization 2024 bacterial priority pathogens list, carbapenem‐resistant Enterobacterales (CRE) were listed among the critical priority pathogens. Heteroresistance (i.e., a bacterial isolate that appears susceptible but harbors resistant subpopulations) represents a challenge in traditional laboratory testing ...
Rad ZR, Rad ZR, Goudarzi H, Goudarzi M, Javidi M, Sharahi JY, Kargar M, Hashemi A.   +7 more
europepmc   +2 more sources

Analysis of β-lactams and Carbapenem Heteroresistance in Extra-intestinal Pathogenic Escherichia coli from Blood Samples in Iran

Journal of Medical Microbiology and Infectious Diseases, 2021
Introduction: Heteroresistance is the phenomenon wherein subpopulations of microbes exhibit a range of resistance to an antibiotic and are prevalent in a broad range of microorganisms.
Mohammad Taha Ebrahimi, Mohsen Nazari, Niloofar Mobarezpour, Hamed Afkhami, Sepideh Fereshteh   +4 more
doaj   +1 more source

Antibiotic Heteroresistance in Klebsiella pneumoniae

International Journal of Molecular Sciences, 2021
Klebsiella pneumoniae is one of the most common pathogens responsible for infections, including pneumonia, urinary tract infections, and bacteremias. The increasing prevalence of multidrug-resistant K. pneumoniae was recognized in 2017 by the World Health Organization as a critical public health threat.
Karolina Stojowska-Swędrzyńska, Adrianna Łupkowska, Dorota Kuczyńska-Wiśnik, Ewa Laskowska   +3 more
openaire   +2 more sources

Detection of Colistin Heteroresistance in Carbapenem-Resistant <i>Pseudomonas aeruginosa</i> Clinical Isolates in Iran. [PDF]

Int J Microbiol
Background Since antimicrobial resistance is a rising danger and a serious threat to the health of humans, recent studies have revealed that routine tests, such as minimum inhibitory concentration (MIC), are not enough to detect heteroresistance (HR) phenotype (i.e., phenotypic heterogeneity in antibiotic susceptibility in the identical bacterial ...
Rad ZR, Rad ZR, Goudarzi H, Goudarzi M, Pourdehghan P, Kargar M, Shams S, Hashemi A.   +7 more
europepmc   +2 more sources

Heteroresistance to clarithromycin and metronidazole in patients with a Helicobacter pylori infection: a systematic review and meta-analysis

Annals of Clinical Microbiology and Antimicrobials, 2022
Background Antimicrobial resistance of H. pylori can lead to treatment failure. Importantly, several studies have reported on heteroresistance, i.e. the presence of resistant and susceptible H. pylori populations in the same sample and/or a difference in
Ebrahim Kouhsari, Nourkhoda Sadeghifard, Arezoo Khadiv, Hojjat Sayadi, Taghi Amiriani, Sobhan Ghafourian, Hassan Valadbeigi, Marcela Krutova   +7 more
doaj   +1 more source

Ceftaroline-Heteroresistant Staphylococcus aureus [PDF]

Antimicrobial Agents and Chemotherapy, 2014
ABSTRACT Heteroresistance refers to the presence, within a large population of antimicrobial-susceptible microorganisms, of subpopulations with lesser susceptibilities. Ceftaroline is a novel cephalosporin with activity against methicillin-resistant Staphylococcus aureus (MRSA).
Stephanie N, Saravolatz, Hayley, Martin, Joan, Pawlak, Leonard B, Johnson, Louis D, Saravolatz   +4 more
openaire   +2 more sources

Prevalence and extent of heteroresistance by next generation sequencing of multidrug-resistant tuberculosis. [PDF]

PLoS ONE, 2017
Amplicon-based Next Generation Sequencing (NGS) is an emerging method for Mycobacterium tuberculosis drug susceptibility testing (DST) but has not been well described. We examined 158 clinical multidrug-resistant M.
Darwin J Operario, Alexander F Koeppel, Stephen D Turner, Yongde Bao, Suporn Pholwat, Sayera Banu, Suporn Foongladda, Stellah Mpagama, Jean Gratz, Oleg Ogarkov, Svetlana Zhadova, Scott K Heysell, Eric R Houpt   +12 more
doaj   +1 more source