Archive of December, 2021

Detection of bacterial growth and Biofilm formation in pipelines made easy
By Giovanni Pavanello The Biofilm Problems On the surfaces that are in contact with water, a “biofilm” layer of microorganisms that are contained in a matrix (slime layer) can be formed. It is as a complex community of microorganisms, embedded in self-created extracellular polymeric substances (EPS). The biofilm is a microbial population adherent to each other and to the surfaces or interfaces enclosed in the matrix. Their presence in manufacturing pipelines can be responsible for a wide range of water quality and operational problems. A Biofilm layer can form on any surface, even in extreme conditions (e.g., very high and very low...
Precedence-setting Food Safety Case: Foster Chicken Farm found Liable in Salmonella Case
Meatingplace reported that a jury in Arizona returned a precedent-setting verdict in favor of 5 ½ years old boy (Noah Craten)   who had brain surgery in 2013, as a result of a massive brain abscess. The doctors determined that the abscess had been caused by bacterial meningitis due to Salmonella Heidelberg infection from what was believed to be chicken meat produced by Foster Poultry Farms. Although the USDA does not consider Salmonella an adulterant in raw chicken, and even though cooking the chicken will kill the bacteria, the case establishes that chicken producers can be held liable for Salmonella contamination. The...
A Single Genetic Code Change Makes African Salmonella More Deadly
A new study has identified a single genetic code change that allows Salmonella Typhimurium (ST313) to play a significant role in human bloodstream infections in sub-Saharan Africa.  The study was published in Proceedings of the National Academy of Sciences, 2018 (PNAS) [Role of a single noncoding nucleotide in the evolution of an epidemic African clade of Salmonella Disa L. Hammarlöf, Carsten Kröger, Siân V. Owen, Rocío Canals, Lizeth Lacharme-Lora, Nicolas Wenner, Anna E. Schager, Timothy J. Wells, Ian R. Henderson, Paul Wigley, Karsten Hokamp, Nicholas A. Feasey, Melita A. Gordon and Jay C. D. Hinton; PNAS 2018] Invasive non-typhoidal Salmonellosis (iNTS) is killing approximately 390,000 people annually in sub-Saharan Africa. iNTS is caused by Salmonella that enters the...