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  • Population genetics of Haemophilus influenzae serotype a in three Canadian provinces.

Population genetics of Haemophilus influenzae serotype a in three Canadian provinces.

Canadian journal of microbiology (2013-05-08)
Raymond S W Tsang, Michelle Shuel, John Wylie, Brigitte Lefebvre, Linda Hoang, Dennis K S Law
ABSTRACT

Haemophilus influenzae serotype a (Hia) is an important pathogen since the introduction of vaccines for control of disease due to serotype b strains. Using a sodC-based polymerase chain reaction, Hia can be divided into 2 phylogenetic divisions, each with their own unique multilocus sequence types. Most Canadian Hia belongs to clonal division I and the ST-23 clonal complex. The recently described hypervirulent clone of ST-4 was found in a single Canadian isolate. Therefore, surveillance of invasive H. influenzae disease should include serotyping to detect Hia and multilocus sequence typing to detect hypervirulent clones.

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Sigma-Aldrich
Superoxide Dismutase from bovine erythrocytes, BioUltra, lyophilized powder, ≥4,500 units/mg protein, ≥97% (SDS-PAGE)
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Superoxide Dismutase from bovine erythrocytes, lyophilized powder, ≥3,000 units/mg protein, Protein ≥95 % by biuret
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Superoxide Dismutase from bovine erythrocytes, ≥3,000 units/mg protein, BioReagent, lyophilized powder, suitable for cell culture
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50 mL
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Superoxide Dismutase from bovine liver, lyophilized powder, ≥1500 units/mg protein
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Superoxide Dismutase from bovine liver, ammonium sulfate suspension, 2,000-6,000 units/mg protein (biuret)
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Superoxide Dismutase bovine, recombinant, expressed in E. coli, lyophilized powder, ≥2500 units/mg protein, ≥90% (SDS-PAGE)
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50 mL
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Superoxide Dismutase from human erythrocytes, essentially salt-free, lyophilized powder, ≥2,500 units/mg protein
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50 mL
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100 mL
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CN¥748.16
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CN¥1,477.98