Toronto Public Health is warning recent visitors to the juice bar at the Big Carrot health food store at 348 Danforth Ave. that they might have been exposed to hepatitis A.

Anyone who drank fresh juice from the restaurant between March 17 and April 2 should get vaccinated as soon as possible, says the city’s health department. A vaccine is most effective within two weeks of exposure, and Public Health is setting up a vaccine clinic from 1 p.m. to 3 p.m. on Sunday at the East York Civic Centre, at 850 Coxwell Ave.

An employee of Big Carrot had a confirmed case of hepatitis A.

A statement sent to the Star by The Big Carrot said this “appears to be an isolated circumstance” and is being considered low-risk, but that anyone who “frequented” the store between the dates listed by Public Health should be aware of the possible contamination.

“The Big Carrot is working closely with Public Health to ensure that this incident is handled thoroughly,” added the statement.

Symptoms, which include fever, nausea, stomach pain and jaundice, can show anywhere from two to seven weeks after exposure. Those infected sometimes have no symptoms at all.

In rare cases, hepatitis A can cause liver failure in the elderly or those with existing liver problems.

Hepatitis A is spread through food or drink contaminated with infected feces — from a food handler with the disease, for example. Public Health confirmed that the risk of spreading in this case was low, but still recommended getting the vaccine.