lunes, 9 de abril de 2012
Less Salmonella cases in humans but Campylobacteriosis remains the most reported zoonotic infection.
According to the report, the likely main reasons for the decrease in human salmonelosis cases are the successful EU Salmonella control programmes for reducing the prevalence of the bacteria in poultry populations, particularly in laying hens. Salmonella was found most often in chicken and turkey meat.
At the same time, while salmonelosis decreases, in 2010, a total of 212,064 Campylobacter cases in humans were reported, an increase for the fifth consecutive year with 7% more cases compared to 2009. In foodstuffs, Campylobacter, which can cause diarrhea and fever, was mostly found in raw poultry meat. In order to combat Campylobacter, the European Commission is currently carrying out a cost-benefit analysis of the control measures for the bacteria at different stages of the food chain. EFSA has supported this work by among others analyzing an EU-wide baseline survey on the prevalence of Campylobacter in chicken and providing scientific advice on possible reduction measures.
The report also gives an overview of other food-borne diseases. Human cases of Shiga toxin/verotoxin -producing Escherichia coli (STEC/VTEC) have been increasing since 2008 and amounted to 4,000 reported cases in 2010. Among animals and foodstuffs, VTEC was most often reported in cattle and their meat.
A decrease for the fifth consecutive year was recorded for human cases of Yersinia enterocolitica, The number of human cases of trichinellosis - a parasitic zoonosis – decreased significantly in 2010 (223 cases compared to 748 in 2009) with a corresponding reduction of Trichinella findings in pigs, an important source of the parasite.
Listeria infections in humans showed a slight decrease with 1,601 confirmed cases in 2010. In 2013, EFSA will be analysing the results of an EU-wide baseline survey on Listeria in ready-to-eat foods including smoked fish, heat-treated meat products and soft and semi-soft cheeses, which will provide further valuable information on its prevalence and the factors contributing to this in these high-risk foods. To complement this work, EFSA and ECDC will carry out a joint molecular typing analysis for human and food Listeria strains to identify potential links between human cases and food.
The report says that 5,262 food-borne outbreaks were recorded in the EU in 2010, slightly less than in 2009. These reported outbreaks affected over 43,000 people and caused 25 deaths; however, these figures may in reality be higher due to under-reporting. The most frequently reported causes were Salmonella (31% of all outbreaks), viruses such as norovirus (15%) and Campylobacter (9%). The most important food sources in the outbreaks were eggs and egg products, mixed and buffet meals and vegetables and derived products. The importance of vegetables as sources of outbreaks increased from previous years.
The report covers 15 zoonotic diseases, including Q fever, brucellosis, bovine tuberculosis, rabies and the parasitic zoonoses echinococcosis. The full version of the report with data by country and annexes is available on EFSA and ECDC websites.