Results 51 to 60 of about 183,447 (207)

Antibiotic susceptibility testing and molecular characterization based on whole-genome sequencing of Streptococcus pneumoniae isolates from pediatric infections at the National Regional Medical Center of Southwest China during the COVID-19 pandemic

open access: yesFrontiers in Public Health
BackgroundStreptococcus pneumoniae is a transmitted respiratory pathogen that causes high morbidity and mortality in children, especially those under 5 years of age. During the implementation of population control measures for COVID-19 in mainland China,
Ziyi Yan   +12 more
doaj   +1 more source

A bacteriophage-acquired O-antigen polymerase (Wzyβ) from P. aeruginosa serotype O16 performs a varied mechanism compared to its cognate Wzyα.

open access: yesFrontiers in Microbiology, 2016
Pseudomonas aeruginosa is a Gram-negative bacterium that produces highly varied lipopolysaccharide (LPS) structures. The O antigen (O-Ag) in the LPS is synthesized through the Wzx/Wzy-dependent pathway where lipid-linked O-Ag repeats are polymerized by ...
Véronique L. Taylor   +5 more
doaj   +1 more source

Pneumococcal serotype prevalence and antibiotic resistance in children in South and Southeast Asia, 2012–2024

open access: yesHuman Vaccines & Immunotherapeutics
This narrative review describes pneumococcal serotype prevalence for invasive disease and carriage and antibiotic resistance among specimens collected from children in countries across South and Southeast Asia from 2012 to 2024.
Tzou-Yien Lin   +7 more
doaj   +1 more source

Serotype Competence and Penicillin Resistance in Streptococcus pneumoniae

open access: yesEmerging Infectious Diseases, 2006
From 2003 to 2005, we prospectively collected 118 isolates of pneumococci belonging to 7 serotypes to investigate their competence under the influence of the synthetic competence-stimulating peptides.
Yu-Chia Hsieh   +9 more
doaj   +1 more source

Multiplex PCR assays for simultaneous detection of six major serotypes and two virulence-associated phenotypes of Streptococcus suis in tonsillar specimens from pigs [PDF]

open access: yes, 2002
Multiplex PCR assays for the detection and identification of various Streptococcus suis strains in tonsillar specimens from pigs were developed and evaluated. In two separate reactions, five distinct DNA targets were amplified.
Smith, H.E.   +2 more
core   +1 more source

Two New Salmonella Serotypes (Serotype malakal and Serotype khartoum) Isolated from Dogs [PDF]

open access: yesInternational Journal of Systematic Bacteriology, 1972
Two new Salmonella serotypes, Salmonella sp. serotype malakal and Salmonella sp. serotype khartoum, have been isolated from mesenteric lymph nodes of apparently healthy dogs in the Sudan, and they belong to Salmonella subgenus I. The antigenic formulae of these serotypes are: S. malakal = 16: e,h: 1,2; S. khartoum = (3),(15), 34: a : 1,7.
Q. A. KHAN, R. ROHDE
openaire   +1 more source

Serotype, antibiotic susceptibility and whole-genome characterization of Streptococcus pneumoniae in all age groups living in Southwest China during 2018–2022

open access: yesFrontiers in Microbiology
BackgroundStreptococcus pneumoniae is a common pathogen that colonizes the human upper respiratory tract, causing high morbidity and mortality worldwide. This study aimed to investigate the prevalence status of S. pneumoniae isolated from patients of all
Chenglin Miao   +18 more
doaj   +1 more source

Application of PCR-based serogrouping of selected Salmonella serotypes in Malaysia

open access: yesJournal of Infection in Developing Countries, 2009
Background: Differentiation of Salmonella enterica into its serogroups is important for epidemiological study. The objective of the study was to apply a multiplex PCR targeting serogroups A, B, C1, D, E and Vi-positive strains of Salmonella enterica ...
Bee Kim Lim, Kwai Lin Thong
doaj   +1 more source

Exchange of the C-terminal part of VP3 from very virulent infectious bursal disease virus results in an attenuated virus with a unique antigenic structure [PDF]

open access: yes, 2002
Infectious bursal disease virus (IBDV) is the major viral pathogen in the poultry industry. Live attenuated serotype 1 vaccine strains are commonly used to protect susceptible chickens during their first 6 weeks of life. Wild-type serotype 1 IBDV strains
Peeters, B.P.H.   +6 more
core   +1 more source

The impact of specific and non-specific immunity on the ecology of Streptococcus pneumoniae and the implications for vaccination [PDF]

open access: yes, 2013
More than 90 capsular serotypes of Streptococcus pneumoniae coexist despite competing for nasopharyngeal carriage and a gradient in fitness. The underlying mechanisms for this are poorly understood and make assessment of the likely population impact of ...
Robertson, Charles   +5 more
core   +5 more sources

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