Among 63 people who consumed food at a Minnesota high school dance team banquet, 18 came down with strep throat less than three days later. When multiple posts soon appeared on the team's Facebook page about ill dance team members and relatives, a parent contacted the state health department.
After interviewing approximately 100 people by telephone—those who attended the banquet, household contacts of attendees, and those who did not attend but ate banquet leftovers—and conducting DNA typing of bacterial strains isolated from those who became ill, lead report author Sarah Kemble, MD, and her team of investigators at the Minnesota Department of Health narrowed the possible source of the outbreak to cooked pasta served at the banquet.
The DNA fingerprints of the strep bacteria isolated from the throats of those who became ill matched those of the bacteria identified in the pasta. In addition, one person who became ill and did not attend the banquet, but who ate some of the leftover pasta brought home by family members who did attend, helped confirm how the bacteria was transmitted. This person had a laboratory-confirmed GAS infection that matched the same DNA fingerprint pattern. No one else in the household had symptoms of strep throat, and throat swabs on all the other household members were negative for the bacteria.
"We suspect cooked food was contaminated by respiratory droplets from a person who carried the strep bacteria in the throat when the food was cooling or reheating," Dr. Kemble said. "The food probably was not kept hot or cold enough to stop bacterial growth." Both the parent who prepared the pasta and a child in the same household reported having strep throat three weeks before the banquet."Foodborne illness is not limited to diseases that cause vomiting and diarrhea," Dr. Kemble noted.
The rapid communication possible within a large group using online social media played an important role in bringing this outbreak to the attention of a parent, who then contacted the health department, Dr. Kemble said. A more formalized use of social media for disease surveillance and outbreak investigations may have the potential to benefit public health in some circumstances, the authors noted.Tips for Reducing the Spread of Foodborne Illness
When preparing food in large batches (e.g., for large groups of people), ensure the food is kept hot or cold. Disease-causing bacteria grow best in the "temperature danger zone" of 41° F to 140° F.
Use a thermometer to ensure that food items are meeting proper temperature requirements.
Educational materials for those cooking for large groups are available from the U.S. Department of Agriculture: http://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/teach-others/download-materials
Clinical Infectious Diseases is a leading journal in the field of infectious disease with a broad international readership. The journal publishes articles on a variety of subjects of interest to practitioners and researchers. Topics range from clinical descriptions of infections, public health, microbiology, and immunology to the prevention of infection, the evaluation of current and novel treatments, and the promotion of optimal practices for diagnosis and treatment. The journal publishes original research, editorial commentaries, review articles, and practice guidelines and is among the most highly cited journals in the field of infectious diseases. Clinical Infectious Diseases is an official publication of the Infectious Diseases Society of America (IDSA). Based in Arlington, Va., IDSA is a professional society representing nearly 10,000 physicians and scientists who specialize in infectious diseases.
Jerica Pitts | EurekAlert!
Team discovers how bacteria exploit a chink in the body's armor
20.01.2017 | University of Illinois at Urbana-Champaign
Rabies viruses reveal wiring in transparent brains
19.01.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Life Sciences
20.01.2017 | Physics and Astronomy
20.01.2017 | Materials Sciences