H.6 investigation summary: material 221788 is manufactured by rehydrating the media components with usp purified water and thoroughly mixing until a homogeneous solution is obtained.The tubes are filled, capped, torqued and then labeled by machine per standard operating procedure (sop).The tubes are terminally autoclaved in an air over pressure (aop) autoclave, per manufacturing instructions, using a validated cycle.Post autoclaving, tubes are packaged into final shipping configurations.The batch history record review for batch 1244320 was satisfactory and no quality notifications were generated during manufacturing and inspection.Formulation, filling torquing, and autoclaving processes were within specifications.Qc inspection and testing were satisfactory at time of release.The complaint history was reviewed, and one other complaint has been taken on this batch for contamination.Retention samples from batch 1244320 (10 tubes) were available for inspection.No media, defects were observed in 10/10 retention samples.For investigation two retention tubes went investigation.One retention tube went into 20¿25-degree celsius incubation.One retention tube went into 33-37-degree celsius.At the end of a seven-day incubation period there was no microbial growth in 2/2 retention tubes.Four photos were received to assist with the investigation: the first photo shows the label of a partial bd 100 pack carton from batch 1244320.The second photo also shows media from two partial tubes; the media does appear to have a hazy appearance.The third photo shows another angle of the media from two partial tubes; the media does appear to have a hazy appearance.The last photo shows two tubes.One tube is from batch 1238117 (ref pr (b)(4)) and one tube from batch 1244320.The media in both tubes does appear to be hazy.For appearance of the media, material 221788 procedure states to boil the tubes with loosened caps for ten minutes before use.For investigation purpose three return tubes and one retention tube were boiled the media appearance cleared up to a light/medium light yellow clear appearance as describe in the certificate of analysis.Returns were also received to assist with the investigation.A shipping box was received with four bd cartons from batch 1244320 carton numbers 0024, 0191, 0195, and 0166.There were 386 tubes received in overall good condition.The media did appear hazy.For investigation of complaint all four cartons went into incubation.One tube was plated on two tsa 5% sheep blood agar.One plate was placed in the 20-25-degrees celsius incubation and one plate was placed in 33-37-degree celsius incubation.There was no microbial growth on either plate after incubation.Two cartons were placed into 20-25-degrees celsius incubation.Two cartons were placed into 33-37-degrees celsius incubation.At the end of a seven-day incubation period there was no real change in the media after incubation.A gram stain was performed on one tube from batch 1244320, the gram stain revealed gram negative rods.This complaint can be confirmed for non-viables from the returns received.A trend has not been identified, therefore, no actions are planned at this time.
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