The investigation of a multistate outbreak of Shiga toxin-producing Escherichia coli O157:H7 (STEC) that sickened 77 people and hospitalized 35 was traced back to ready-to-bake cookie dough, prompting infectious disease specialists to ask for stronger pasteurization and more consumer warnings.
A report in Clinical Infectious Diseases outlined the outbreak and the work done by national and local health officials to track down the source.
No single source could be identified for certain for the outbreak. But one brand of dough was present in 94% of cases, and three nonoutbreak STEC strains were isolated from it, leading to a recall of 3.6 million packages of the cookie dough.
The detective work began with May 19, 2009, through PulseNet, the network of public health and food regulatory agency laboratories coordinated by the CDC. It identified Read more »
*This blog post was originally published at ACP Internist*
Salmonella food infections continue despite success reducing disease caused by other pathogens, the Centers for Disease Control and Prevention reports.
Salmonella should be targeted because while infection rates have not declined significantly in more than a decade, they are one of the most common, the CDC reports in its latest Vital Signs.
Contaminated food causes approximately 1,000 reported disease outbreaks and an estimated 48 million illnesses, 128,000 hospitalizations, and 3,000 deaths annually in the U.S. Salmonella causes 1 million foodborne infections annually, incurring an estimated $365 million in direct medical costs. Salmonella infections in 2010 increased 10% from 2006-2008.
The same prevention measures that reduced Escherichia coli infections to less than 1 case per 100,000 need to be applied more broadly to reduce Salmonella and other infections, the CDC reports. These measures include: Read more »
*This blog post was originally published at ACP Internist*
It is hard to get infected. The immune system is robust and has a multitude of interlinking defenses that are extremely efficient in beating off most pathogens. Most of the time.
Fortunately, it is a minority of microbes that have evolved to be virulent in humans. Bacteremia is common with our own microbiome. When you brush or floss, bacteria leak into the blood stream:
We identified oral bacterial species in blood cultures following single-tooth extraction and tooth brushing. Sequence analysis of 16S rRNA genes identified 98 different bacterial species recovered from 151 bacteremic subjects. Of interest, 48 of the isolates represented 19 novel species of Prevotella, Fusobacterium, Streptococcus, Actinomyces, Capnocytophaga, Selenomonas, and Veillonella.
but with a good immune system, low virulence bacteria and no place to go, unfortunately the bacteria rarely cause infections.
Even heroin users rarely get infection. Heroin is a rich melange of bacteria and, on occasion, yeasts (I hate to say contaminated, since avoiding microbes is hardly a worry of heroin manufacturers), and the water used for injection is rarely sterile, yet infections are relatively rare despite the filth in which many heroin users exist.
I used to be somewhat fatalistic about hospital acquired infections. However, as the institutions in which I have worked have proven, almost all infections in the hospital are preventable if the institutions aggressively pursue high standards of care.
There are many systems in place in society to prevent infections: flush toilets, good nutrition, public health, vaccines, antibiotics, good hygiene, and an understanding of disease epidemiology, and I suspect people forget there are bugs out there that are pathogenic, just waiting to sicken and kill us. At least a couple of times a year I see patients come into the hospital, previously healthy, who rapidly die of acute infections. But for most people, most of the time, it takes a lot of effort to get an infection.
My mother was very proud of the fact that none of her four children ever became sick from her cooking. While it’s true she may have erred on the side of overcooking the turkey, being spared food poisoning is yet another in the long list of gifts from my mom.
Every year, about 76 million Americans develop illness from food, more than 325,000 are hospitalized, and about 5,000 die. The most common cause is contamination with bacteria such as Salmonella, Campylobacter, Shigella, and E. coli — though other organisms such as viruses and protozoa can also be culprits. As summer begins, I thought it would be a good time to review some basic tips about food safety. Read more »
Remember “cooties” in grade school? You know, the germs or disease that girls gave boys or boys gave girls in grade school if they touched? Well, it seems they’re becoming an epidemic. Thank goodness someone checked for “cooties” on the Stanley Cup:
The NHL champion Blackhawks’ beloved trophy stopped by the Chicago Tribune newsroom, and so we took the opportunity to do something the Cup’s keeper said had never been done: We swabbed it for germs. We sent the samples to the Chicago lab EMSL Analytical, which found very little general bacteria and no signs of staph,salmonella or E. coli. “It’s surprisingly clean,” lab manager Nancy McDonald said. Just 400 counts of general bacteria were found, she said. By comparison, a desk in an office typically has more than 10,000.
No staph species detected? Hmmm. I think there was a sampling error…
-WesMusings of a cardiologist and cardiac electrophysiologist.
*This blog post was originally published at Dr. Wes*
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A report in Clinical Infectious Diseases outlined the outbreak and the work done by national and local health officials to track down the source.
