Nuestra meta es promover la inocuidad alimentaria, instando a autoridades, productores y consumidores a aportar en la consecución de este objetivo.
Our goal is to promote food safety, pushing authorities, producers and consumers to increase their efforts to accomplish this objective.
martes, 3 de julio de 2012
Automated System to Detect Infectious Diseases for Olympics 2012.
The world's first comprehensive, automated outbreak detection system
This method will monitor over 3,000 infections and is ready to run during Olympics
2012, was developed by a researcher at The Open University.
Paddy Farrington, Professor
of Statistics at The Open University, began work on the outbreak detection
system while he was at the Health Protection Agency (HPA) in the early 1990s.
The system has proved its worth over the years and will be run by HPA during
the period of the London 2012 Olympics.
The system has already
contributed to the detection and control of numerous outbreaks of infections
·An outbreak of Salmonella enteritidis phage type
14b in 2009, an outbreak of Salmonella Java in 2010, an outbreak of Salmonella
Poona in 2012.
·The system has been implemented in Sweden, southern
Germany, the Netherlands, and Denmark; and been adapted to detect excess
mortality in Belgium.
·Enhanced surveillance using the system is also
planned for the 2014 Commonwealth Games, Glasgow.
The system is
based on a set of algorithms known as Robust Poisson Regression (RPR). Outbreak
detection starts with the detection of an unusual number of reported cases of a
particular infection in a given time and space. Computer programs are used to
compare the observed number of cases with expected values. When an increase is
detected, the program raises an alert, which epidemiologists assess to
determine if further investigation is warranted. If an outbreak is confirmed,
further investigations follow and control measures are taken.
interest in the use of statistical surveillance systems has been driven by
concerns over bio-terrorism, the emergence of new pathogens like SARS and swine
flu, and the persistent public health problems of infectious disease
outbreaks," said Professor Farrington, who is working on a new version of
system is the first to offer a comprehensive way to detect such outbreaks. A
challenge in designing large multiple outbreak detection systems is to control
the proportion of false alarms without impairing the detection of genuine
outbreaks. Through improvements to the existing system, we managed to reduce
the number of false alarms by 50% without impairing performance."
which is conducted in collaboration with statisticians at HPA and Health
Protection Scotland, received funding totaling £650,000 from the National
Institute of Health Research and the Medical Research Council.