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Found 10 records similar to Food Microbiology - Targeted Surveys - 2016 - 2017 Viruses in Sun-Dried Tomatoes - Final Report
A targeted survey analyzed 1,991 samples of fresh berries and frozen fruits for viruses. 99.6% of the samples were found to be free of viruses. Samples were analyzed for hepatitis A (HAV), norovirus (NoV) (Genotype I and II (GI, GII)) and human rotavirus (HRV) RNA. HAV and NoV (GI) RNA were not detected in any of the samples tested.
A targeted survey analyzed 1149 samples of ready-to-eat fresh-cut fruits for the presence of Hepatitis A Virus (HAV) and Norovirus (NoV) genetic material (RNA). HAV RNA was detected in 3 samples and NoV RNA was detected in 2 samples. The CFIA conducted appropriate follow-up activities. No illnesses were reported in association with any of the positive samples and no product recalls were required.
A targeted survey analyzed 1,828 samples of unpasteurized juices and high pressure processed juices for bacterial pathogens and indicators, viruses and parasites. An elevated level of generic Escherichia coli was found in one sample. All other samples were found to be free of bacterial pathogens, viruses, and parasites. The CFIA conducted appropriate follow-up activities.
A targeted survey of 2,233 samples of leafy vegetables for parasites found 98.8% to be satisfactory. Samples were analyzed for Cyclospora cayetanensis, Cryptosporidium spp., Toxoplasma gondii, and Giardia spp. Two samples contained parasite DNA of Cryptosporidium spp. and three samples contained Toxoplasma gondii DNA.
The purpose of this guideline is to provide a national framework for developing policies and procedures to prevent the transmission of bloodborne viruses.
Swine influenza (swine flu) is an infectious respiratory disease of pigs. It's caused by type A influenza viruses.
Health Canada recently completed its review of the health risks associated with enteric viruses in drinking water. This guideline technical document reviews and assesses identified health risks associated with enteric viruses in drinking water. It evaluates new studies and approaches and takes into consideration the methodological and interpretation limitations in available methods for the detection of viruses in drinking water. Based on this review, the drinking water guideline is a health-based treatment goal of a minimum 4 log (i.e., 99.99%) removal and/or inactivation of enteric viruses.
Most tests that detect the ribonucleic acid (RNA) or genetic fingerprint of the virus that causes COVID-19 (e.g., a polymerase chain reaction, or PCR test) use a process where specific bits of the genetic fingerprint are amplified using a temperature cycling reaction that repeats up to 45 times. These are called amplification cycles. The more RNA that is present in the patient sample, the fewer cycles are required for the signal to reach the detection threshold (low Ct value). The Ct value is the cut-off that calls a test positive.
A targeted survey analyzed 2,680 samples of dried herbs and 1,178 samples of dried teas for bacterial pathogens. All samples were tested for generic Escherichia coli (E. coli), Salmonella species (spp. ), Bacillus cereus (B. cereus) and Clostridium perfringens (C. perfringens). Additionally, 1,773 samples of dried herbs and all samples of dried teas were analyzed for Staphylococcus aureus (S. aureus).
A targeted survey analyzed 3,173 samples of chocolate-based confectionaries for bacterial pathogens. All samples were tested for Salmonella spp., coliforms and generic Escherichia coli (E. coli). No Salmonella spp and generic E. coli were found in any of the samples. High levels of coliforms were found in 3 samples.