On (b)(6) 2018, a customer in (b)(6) reported a no growth result obtained on (b)(6) 2018, for a vancomycin resistant enterococcus faecium eeq quality control survey strain, in association with chromid® vre id agar (lot.# 1006476480, expiry 30jul2018).The customer stated that no growth was observed after 24 and 48 hours of incubation at 37°c.The agar was stored at 2-8°c protected from the light.No quality control was performed.There was no patient involvement as the event pertained to a quality control sample.A biomérieux internal investigation will be initiated.
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An internal investigation was performed for a false negative result for an enterococcus faecium eeq quality control survey strain, in association with chromid® vre id agar (lot.# 1006476480, expiry 30jul2018).A review of manufacturing and quality records confirmed that lot 1006476480, conformed with all specifications and all quality controls including microbiological activity.Non-conformities and deviations were not detected on this lot.As the impacted lot 1006476480 was already expired at the moment of the investigation, retained kit from another reference lot was tested with quality control strains.Reference lot 1006983950,was tested with the atcc strains enterococcus faecalis (atcc 51299) and enterococcus faecium (atcc 700221).The results were conforming and within specifications.The strain received from the customer, was tested with a plate from retained kit of the reference lot 1006983950.The result was good growth, after 24 and 48 hours of incubation, of typical violet colonies characteristics of an enterococcus faecium strain, resistant to vancomycin (vre strain).The absence of growth from this strain observed by the customer was not reproduced.The complaint review showed that no other complaint was received for the lot 1006476480.In conclusion, chromid® vre id agar (lot.# 1006476480) performed as expected.
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