Alberta Health Services says a food handler working at Edo Japan at Manning Town Centre in Edmonton and Tudor Glen in St. Albert has tested positive for hepatitis A.
It says people who ate food from these locations between June 13-18 June 21-28 may have been exposed to the virus.
Symptoms may include fatigue, poor appetite, nausea, vomiting, abdominal pain and fever followed by dark-coloured urine, light-coloured stools, and yellowing of eyes and skin several days later.
If people develop the symptoms in the specified time period, they are asked to contact Health Link at 811 immediately.
"While we believe the risk to the public is low, hepatitis A is a serious infection," says Dr. Joanna Oda, medical officer of health for Alberta Health Services, Edmonton Zone.
Oda says there is no ongoing risk of infection associated with either Edo locations. Both have been cleaned, inspected, and approved as safe to operate by AHS public health inspectors.
Hepatitis A is an infection of the liver caused by a virus. If an infected person does not properly wash his or her hands after using the bathroom, the virus can be transmitted through food and beverages prepared by the infected individual.
Illness can occur within 15 to 50 days after exposure to the virus, but usually does within 28 to 30 days.
Individuals can be infectious one to two weeks before symptoms occur until at least one week after the onset of illness.
There is no specific treatment for hepatitis A, but it can be prevented through immunization.