is a bacterium that causes a number of
diseases, including food poisoning. It is categorized in Groups A,
B, C, D, F, and G. Groups A and D can be transmitted to humans via
food. Group A includes
and causes septic sore
throat and scarlet fever as well as other pyogenic and septicemic
infections. Group D includes
and may produce a clinical syndrome similar to staphylococcal
Group A symptoms occur in 1-3 days and include:
- Sore and red throat, with pain on swallowing,
- High fever
- Rash (occasionally)
Group D symptoms occur in 2-36 hours and include:
- Abdominal cramps
Group A is diagnosed through a lab culture of nasal and throat
swabs, pus, sputum, blood, suspect food, environmental samples.
Group D is diagnosed through a lab culture of stool samples, blood,
and suspect food.
Group A: Food sources include milk, ice cream, eggs, steamed
lobster, ground ham, potato salad, egg salad, custard, rice
pudding, and shrimp salad. In almost all cases, the foodstuffs were
allowed to stand at room temperature for several hours between
preparation and consumption. Entrance into the food is the result
of poor hygiene, ill food handlers, or the use of unpasteurized
Group D: Food sources include sausage, evaporated milk, cheese,
meat croquettes, meat pie, pudding, raw milk, and pasteurized milk.
Entrance into the food chain is due to underprocessing and/or poor
and unsanitary food preparation.
Group A infections are low and may occur in any season, whereas
Group D infections are variable.
Group A: Streptococcal sore throat is very common, especially in
children. Usually it is successfully treated with antibiotics.
Complications are rare and the fatality rate is low. Group D:
Diarrheal illness is poorly characterized, but is acute and
All individuals are susceptible. No age or race susceptibilities
have been found.
Food and Drug
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a
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