Prevalence of Human Enteric Viruses and a Potential Indicator of Contamination in Shellfish in China.
Influence of working conditions and practices on fresh-cut lettuce salads quality
Identifying the seasonal origins of human campylobacteriosis
Researchers plan to use data collected to develop vaccines to control Salmonella in animals and humans
Posted in Bacteria, Campylobacter, Food Hygiene, Food Illness, Food Inspections, Food Micro Blog, Food Microbiology, Food Poisoning, Food Safety, Food Safety Alert, Food Technology, Food Testing, Foodborne Illness, Hygiene, Illness, Methods, Microbiology, Norovirus, outbreak, Pathogen, Research, Salmonella, Virus
Tagged cambridge journals, climate, enteric viruses, lettuce salads, research, science
Norovirus is a common cause of gastroenteritis in all ages. Typical infections cause viral shedding periods of days to weeks, but some individuals can shed for months or years. Most norovirus risk models do not include these long-shedding individuals, and may therefore underestimate risk. We reviewed the literature for norovirus-shedding duration data and stratified these data into two distributions: regular shedding (mean 14–16 days) and long shedding (mean 105–136 days). These distributions were used to inform a norovirus transmission model that predicts the impact of long shedders. Our transmission model predicts that this subpopulation increases the outbreak potential (measured by the reproductive number) by 50–80%, the probability of an outbreak by 33%, the severity of transmission (measured by the attack rate) by 20%, and transmission duration by 100%. Characterizing and understanding shedding duration heterogeneity can provide insights into community transmission that can be useful in mitigating norovirus risk.
Posted in Food Hygiene, Food Illness, Food Inspections, Food Micro Blog, Food Microbiology, Food Poisoning, Food Safety, Food Technology, Food Testing, Food Virus, Foodborne Illness, Hand Washing, Hygiene, Illness, Methods, Microbiology, Norovirus, Pathogen, Research
Tagged cambridge journals, research, science
FoodWorld 