Transmission routes for the bacterium Campylobacter
Campylobacter is the most frequently reported human bacterial enteric pathogen, in Norway as well as in other countries. The number of diseased has been continuously increasing during the last 15
According to the official statistics, approximately 1200 persons are domestically infected with Campylobacter each year, but the true number is probably much higher according to Gro Johnsen. She has done research on Campylobacter, and defended recently her PhD thesis at the Norwegian School of Veterinary Science.
Consumption of poultry meat purchased raw, for instance broiler fillet, is regarded as a risk factor for acquiring the disease. Campylobacter is decimated through food production, but the bacterium is readily transmitted to salad and other ready-to-eat foods due to poor kitchen hygiene and cross contamination from contaminated utensils, Johnsen says.
Johnsen has studied the transmission routes for Campylobacter, from environment on to live broilers at farm, and cross contamination in the slaughterhouse. She found extensive presence of Campylobacter on the courtyards, and that infected drinking water and lacking hygienic routines caused infection of the broilers.
- A surprising finding was the high prevalence of Campylobacter in surface water in the vicinity of the broiler farms, Johnsen tells. It is well known that the bacterium can be isolated from water, but that it can be so commonly found is worrying.
Johnsen also found that the carcasses and the slaughterhouse environment, including the air, were considerably contaminated during the slaughtering of infected flocks.
To prevent Campylobacter infecting the live poultry at farm, proper hygienic barriers and clean disinfected drinking water are important. During slaughter, measures have to be implemented to prevent the transmission of Campylobacter to clean carcasses, to the slaughterhouse workers and to prevent infected retail products to be distributed.
Hege Robberstad | alfa
The most recent press releases about innovation >>>
Die letzten 5 Focus-News des innovations-reports im Überblick:
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...