This investigation was initiated due to an odd result with etest ceftaroline cpt 32 us b30 ref 537540 and staphylococcus aureus atcc 29213.Given that the customer could not provide biomerieux with the lot numbers he used, the batches sent to this customer were searched internally.In conclusion, no batches of this reference 537540 have been sent to this customer since january 2014.The shelf life of this reference being two years, it's impossible for the customer to have used a non-expired lot.Because of this, no further investigation will be performed.
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