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E. coli antisera OK O pool 1 and O26

E. COLI OK O ANTISERUM FOR LIVE CULTURE

OK O antisera are suitable for screening for surface antigens on live cultures, and are particularly suited to test for known EPEC and/or VTEC serotypes.

A positive agglutination test is not indicative of the presence of relevant virulence genes. Positive isolates should therefore be investigated further for virulence factors, e.g. using PCR or H serotyping.

Product description

OK O antisera are polyclonal antisera produced by immunising rabbits with whole formalin-killed cells. Serum therefore contains antibodies against O, K, H and other protein antigens found on the surface of the cell. For this reason OK O sera are intended only for screening and must always be confirmed with O serotyping.

OK O antisera are supplied in dropper bottles of 3 mL ready-to-use antiserum, sufficient for at least 150 reactions.

We offer the full range of antisera for E. coli serotyping

High quality

All absorbed free of cross-reactions

We offer experienced technical support

How to use

OK O antisera are used for slide agglutination with live cultures, and the reaction can be read after 5-10 seconds. Pool OK O antisera are absorbed in OK O pool 1-3. OK O single antisera are absorbed within the EPEC/VTEC O groups contained in the pools.

The result of the test can be attributed to the presence of several different surface structures, and so false positive and sometimes false negative reactions can occur. It is therefore very important to have the O group confirmed using agglutination with a specific O antiserum.

Product range

SSI has 3 OK O pool sera and the corresponding individual OK O sera.

Pool 1:
O26, O103, O111, O145, O157.

Pool 2:
O55, O119, O125ac, O127, O128ab.

Pool 3:
O86, O114, O121, O126, O142.

In addition, OK O138, OK O139 and OK O149, which are often found in association with swine production, and OK O45 and OK O158 are also available.

OK O pool antisera

Article
number
ProductReact with 
antigen
Number
of tests
Packing
44292 Pool 1
EPEC/VTEC/
STEC
O26, O103, O111,
O145, O157
1503 mL vial
44293Pool 2
EPEC
O55, O119, O125ac,
O127, O128ab
1503 mL vial
77713Pool 3
EPEC
O86, O114, O121,
O126, O142
1503 mL vial


OK O single antisera

Article
number
ProductIncl.
in pool
Number
of tests
PackingWebshop
44295O2611503 mL vialGo to Webshop
53085O45 1503 mL vialGo to Webshop
44296O5521503 mL vialGo to Webshop
44297O8631503 mL vialGo to Webshop
44298O10311503 mL vialGo to Webshop
44299O11111503 mL vialGo to Webshop
44300O11431503 mL vialGo to Webshop
44301O11921503 mL vialGo to Webshop
44302O12131503 mL vialGo to Webshop
44303O125ac21503 mL vialGo to Webshop
44304O12631503 mL vialGo to Webshop
44305O12721503 mL vialGo to Webshop
44306O128ab21503 mL vialGo to Webshop
72682O138 1503 mL vialGo to Webshop
72686O139 1503 mL vialGo to Webshop
44307O14231503 mL vialGo to Webshop
44308O14511503 mL vialGo to Webshop
72687O149 1503 mL vialGo to Webshop
44309O15711503 mL vialGo to Webshop
44310O158 1503 mL vialGo to Webshop

Downloads

Please find the available downloads here.

IFU

Click on the link below to download the IFU.

E. coli OK O for Live Culture

Contact

Please, reach out if you have questions, comments or requests.