Paterson officials are warning some of the city’s residents to get the hepatitis A vaccine if they shopped at a certain grocery store in the city.

A worker at Brother’s Produce tested positive for the illness. Anyone who shopped at the store between Sept. 30 and Oct. 5 is urged to get the vaccine.

City officials will be giving out free vaccines to anyone who does not have health insurance.

Over 300 people received the vaccines on Wednesday.

The Paterson Health Department is giving them out on a first-come, first-served basis.