Meningococcal reference unit (MRU): user manual

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Letter from PHE and NHS Test and Trace to school and college leaders

Published 1 April 2012

Last updated 1 October 2020
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  1. Updated Meningococcal reference unit: user manual.

  2. Updated the ‘Meningococcal reference unit user manual’.

  3. Updated manual October 2015.

  4. First published.

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