TrypticaseTM Soy Agar with 5% Sheep Blood (TSA IITM) // MacConkey II Agar Trypticase Soy Agar with 5% Sheep Blood is used for the growth of fastidious organisms and for the visualization of hemolytic reactions. MacConkey II Agar is a selective and differential medium for the detection of coliform organisms and enteric pathogens.

Reason: A low level of surface and subsurface contamination of Listeria monocytogenes on 9 lots of non-sterile prepared plated media containing sheep blood, typically visible immediately upon removal from the packaging. The contamination is typically observed as 1-3 CFUs per plate when present.

Code information: Catalogue # 221291 with Lot #4050354, 4086399, 4099206 and 4143653; Catalogue #221261 with Lot # 4022158 4086443 4092199

Distribution pattern: Worldwide Distribution - US nationwide including Puerto Rico, Belgium, Canada, Philippines, Singapore, and Taiwan.