H.6.Investigation: this statement is to summarize findings on the recent complaint against campylobacter bloodfree selective medium, catalog number 254403, lot number 0339653.Event description: it was reported that smear instead of separated colonies would appear on the plates.Complaint history review: the complaint history was reviewed.During this period, no further complaints were reported for this product for performance related issues.Therefore, a trend could not be identified.Batch history record (bhr) review: the batch history record review did not show any discrepancies.Sample analysis: picture sample was provided showing colonies on the plates.An analysis of growth promotion for the media was performed on retention samples for the following strains: ca.Jejuni jejuni atcc 33291.Ca.Fetus fetus dsm 5361.Resulted in excellent growth of colonies after an incubation of 48 hours at 36 ± 1°c in a microaerophil atmosphere.Also.E.Coli atcc 25922.P.Mirabilis atcc 14153.E.Faecalis atcc 29212.Resulted in inhibition after an incubation time of 72 hours at 36 ± 1°c in a microaerophil atmosphere.Evaluation results: at this stage of our investigation, we have excluded any systemic failure in our production process.The qc performance test was performed without any deviations.Investigation conclusion: based on the evaluation of the reports, and the qc performance test the complaint was not confirmed.We would suggest that any prepared plated media is set aside and not used that does not meet the appearance specification as it is described on the bd certificate of analysis.This is consistent with industry recommendations for inspection of culture media prior to use (e.G.¿good practices for pharmaceutical microbiology laboratories¿, who technical report series, no.(b)(6) , annex 2; chapter <1117> ¿microbiology best laboratory practices¿ the united states pharmacopeia; and the difco & bbl manual).H3 other text : see h.10.
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