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Pneumococcus strains

General

The Neisseria and Streptococcus Reference (NRS) Laboratory at Statens Serum Institut has a collection of Streptococcus pneumoniae strains. Over the years, we have supplied reference strains to hospitals and universities throughout the world for tests for diagnosis and typing of S.　pneumoniae.

Product description

The strains are sold and delivered primarily as freeze-dried ampoules. Unopened ampoules can be stored for a long time at room temperature.

If we do not have a strain as a freeze-dried ampoule, it can instead be supplied in a transport medium, if desired. Such a strain can be stored only for a short time and must be cultured on receipt.

All strains are supplied with a certificate, on which the serotype and the supplied batch number are stated. The certificate also states the recommended method of culturing the bacterial culture.

We recommend that the strains are cultured at 36-37°C overnight, in air containing 5% CO2, on agar with 10% blood, or in serum bouillon with 1% serum.

The strains are produced and quality-tested for serotype. The serotype is tested using an agglutination test with Pneumotest-Latex and a Neufeld test with type-specific antisera.

Use

The strains are for 'in vitro' use, for testing purposes, e.g. serotype determination, and may not be used for commercial purposes (e.g. sale, production of vaccines, antibodies, etc.), without prior written agreement with SSI Diagnostica, Statens Serum Institut.

Product range

When purchasing bacterial strains, we kindly ask you to fill out a Material Transfer agreement.

The collection contains all known serotypes that can be typed with specific antisera.

If other S. pneumoniae strains with particular characteristics are required, the NSR laboratory can be contacted for information,  .

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Questions and answers regarding Pneumococcus strains

Q: How long time does a serotyping at SSI take?
A: We can usually do this within three weeks.

Q: How should a strain be sent?
A: You should send the strain according to your internal legislation. The strain should be transported in an ordinary transport medium (Stuarts, Cary Blair, lyophilised or likewise), and the package should be marked with an UN number corresponding to the content of the package.