funterest is the combination of fun and interesting stuffs .Here you can get funny clips, interesting images and latest informative news.
Tuesday, 7 April 2015
April 7 2015 World Health Day (United Nations)
In 1948, the First World Health Assembly proposed the establishment of a World Health Day to commemorate the founding of the World Health Organization and to urge governments, organizations and companies to invest in health and build a future safer.
World Health Day 2015: How Scientists Track Food Poisoning
Have you wondered how the outbreaks are traced and solved? I’ve always found this aspect of infectious diseases and epidemiology fascinating.
Identifying the problem
It’s not always easy to identify the cause of an illness, especially if there is just an isolated case, which is true 95% of the time. Most of the time, physicians don’t order stool cultures, hoping the illness will be self-limited. A routine stool culture will miss many
pathogens anyway—the lab has to be alerted to use special media for some organisms, like Vibrio from shellfish, for example, and rarely will send samples to a reference lab for norovirus. Studies for parasites are also commonly sent to reference labs, taking days for results. Because it takes days to identify a pathogen, patients may be treated empirically—by guess and by gosh—based on typical patterns. This encourages overuse of antibiotics like Cipro and Bactrim, fueling resistance, and is part of what makes this recent Shigella outbreak scary.
State public health labs join the investigation, doing serotyping of bacteria to identify a specific bacterial strain, or pulse-field gel electrophoresis (PFGE) for DNA fingerprinting, which identifies the specific genetic pattern of a given bacteria, and can detect identical isolates. State health departments share results through a large database, PulseNet, helping to solve multi-state outbreaks.
information to identify possible food sources and other people at risk of disease. Often, investigations have to include tracebacks through multiple processors and suppliers, many of whom might be overseas, as happened with the cases of
While globalization now brings us wonderful fruits and vegetables year round, it also makes tracing more difficult and spreads multidrug resistance, as with the Shigella, as well.
Highlights of the year, from an epidemiology perspective are this spring’sListeria outbreak from Blue Bell Creameries’ ice cream. Listeria monocytogenes is a bacteria that can cause meningitis and blood stream infections, and is particularly deadly in pregnancy or immunocompromised patients. Unpasteurized cheeses and deli meats are other common sources of Listeria infection.
No self-respecting Infectious Diseases physician could write about food safety and not say, “Don’t drink raw milk!” It can transmit a variety of infections, including Brucella, Listeria, Mycobacterium bovis, Salmonella, and Shiga toxin-producing Escherichia coli, including E. coli O157, as it just did in aCalifornia outbreak of Campylobacter.