Läs mer
Thermo Scientific™ Wellcolex™ E. coli O157
Beskrivning
Rapidly identify Escherichia coli O157 isolates on laboratory media using Wellcolex™ E. coli O157 latex agglutination test.
Rapidly identify Escherichia coli O157 isolates on laboratory media using Thermo Scientific™ Remel™ Wellcolex™ E. coli O157 latex agglutination test. The inability of most E. coli O157:H7 to ferment sorbitol has been used to differentiate them in the laboratory. MacConkey agar containing sorbitol instead of lactose (SMAC) is often used as a primary screening medium1,2. Testing suspect colonies with Wellcolex* E. coli O157 determines whether the isolate belongs to the O157 serogroup.
Verocytotoxin-producing E. coli O157 are an important cause of diarrhoea, haemorrhagic colitis and haemolytic uraemic syndrome3,4. The pathogenicity of this organism is due to the expression of verocytotoxin (VT1 and/or VT2)5-7. Enteritis due to other serotypes is not unusual but in contrast to the majority of isolates, most E. coli O157:H7 do not ferment sorbitol and this has been used as a differential feature for laboratory identification. Testing suspect colonies with Wellcolex* E. coli O157 helps determine whether the isolate belongs to the O157 serogroup.
The Wellcolex* E. coli O157 Rapid Latex Test is categorised as highly complex under the Clinical Laboratory Improvement Act (CLIA88 : Test System Code 40262; Analyte Code 1604).
- Ready-to-use: Color coded latex and control reagents
- Rapid: Results within 30 seconds.
- Easy-to-interpret: Visible agglutination
- Less sample required
The Wellcolex* E. coli O157 Test Reagent consists of a buffered suspension of red polystyrene latex particles coated with rabbit IgG antibodies specific for E. coli O157 and 0.05% Bronidox® as preservative. When a drop of the reagent is mixed on a card with a suspension of E. coli O157 organisms, rapid agglutination occurs through the interaction of specific IgG and O157 lipopolysaccharide antigen.
Some faecal coliforms can cause non-specific aggregation of latex particles, particularly when grown on sugar containing media such as MacConkey. Therefore a control latex is provided to assist with the identification of non-specific reactions. The control latex consists of a buffered suspension of red polystyrene latex particles coated with non-immune rabbit IgG and 0.05% Bronidox® as preservative.
The kit is also supplied with Positive and Negative controls. The positive control contains a dilute suspension of heat killed E. coli O157 antigens and 0.05% Bronidox® preservative. The negative control contains a dilute suspension of heat killed E. coli O106 antigens and 0.05% Bronidox® preservative.
Not all products are available for sale in all territories. Please inquire.
Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.
Specifikationer
Specifikationer
| Beskrivning | Wellcolex E. coli O157 |
| Detekterbara analyter | E. coli serogroup O157 |
| Typ | E. coli Testing Kit |
| Kvantitet | 50 Tests/Kit |
Din input är viktig för oss. Fyll i det här formuläret för att ge feedback relaterad till innehållet på denna produkt.