A new studyis available online in the Oxford journal “Clinical Infectious Diseases” detailing the findings of an investigation into an outbreak of norovirus on a cruise ship in 2009.  Norovirus is the most common type of food-poisoning in the United States.  Usual symptoms of norovirus infection include nausea, vomiting, diarrhea, and abdominal pain. Headache and low-grade

salmonella.jpgToday, Del Monte recalled approximately 23,000 pounds of Guatemalan-grown canteloupe due to the product’s implication in a Salmonella outbreak that has sickened at least 12 people in 7 states.  The recalled products were sold at Costco locations in affected states.  This is the third time in the last three years that Del Monte cantaloupe products have been recalled, or implicated as the cause of a Salmonella outbreak. 

October 2010 Del Monte Salmonella cantaloupe recall

October 2009 Del Monte Salmonella cantaloupe recall

Salmonella Illnesses

Symptoms of Salmonella gastroenteritis include diarrhea, abdominal cramps, fever, nausea, and/or vomiting. In mild cases diarrhea may be non-bloody, occur several times per day, and not be very voluminous; in severe cases it may be frequent, bloody and/or mucoid, and of high volume.  Complications of Salmonella infection can include sepsis, reactive arthritis, and post-infectious irritable bowel syndrome. 

Reactive Arthritis

The arthritis that can be caused by Salmonella infection affects the knees, ankles, and feet, causing pain and swelling. Wrists, fingers and other joints can be affected, though with less frequency. Patients with reactive arthritis commonly develop inflammation where the tendon attaches to the bone, a condition called enthesopathy. Some patients with reactive arhtritis also develop heel spurs, bony growths in the heel that cause chronic or long-lasting foot pain. Reactive arthritis can also affect the joints of the back and cause spondylitis, inflammation of the vertebrae in the spinal column. The duration of reactive arthritis symptoms can vary greatly. Most of the literature suggests that the majority of patients recover within a year. The condition, can, however, be permanent. One study found nearly 50 percent of patients with post dysenteric reactive arthritis continued to have symptoms roughly one year after onset (Inman, et al., 1998).

Post-Infectious Irritable Bowel Syndrome

 Irritable bowel syndrome (IBS) is one disorder in a spectrum of common functional gastrointestinal disorders. Symptoms of IBS can include constipation, diarrhea, alternating diarrhea and constipation, abdominal pain, urgency, bloating, straining at stools, and a sense of incomplete evacuation. The Rome III definition for IBS, which is widely accepted in the medical community, is recurrent abdominal pain or discomfort at least three days per month for at least three months, with at least two of the following symptoms also present: improvement of the pain or discomfort with defecation, a change in frequency of stools, or a change also in the form or appearance of stool.

The observation that the onset of IBS symptoms can be precipitated by gastrointestinal infection dates to the 1950s. Different studies have shown that 7-31% of individuals who have experienced an episode of infectious gastroenteritis, whether bacterial or viral, may develop symptoms of IBS.Continue Reading Salmonella, Cantaloupes, and Information

palmyra.bmpThe E. coli O157:H7 bologna outbreak linked to Palmyra Bologna Company’s bologna products is not the first outbreak associated with the company’s products.  Thanks to quick research at www.outbreakdatabase.com, Palmyra bologna caused a Salmonella outbreak in 1995.  Here are the details.

In 1995, an outbreak of Salmonella Typhimurium occurred in south central Pennsylvania and

oakfarms.bmpOak Farms Dairy in Waco, Texas is voluntarily recalling half gallon plastic bottles of whole chocolate milk, half pint paper cartons of whole chocolate milk, and half pint paper cartons of 1% chocolate milk due to the presence of Alkaline Phosphatase found in samples during routine testing. The significance of the alkaline phosphatase is that it is typically