Two men have been arrested after they allegedly licked their hands in a supermarket and wiped them over meat, fresh produce and fridge handles.
CCTV images were released by police of two shoppers, who entered the Sainsbury's store in Lancaster Road, Morecambe, at about 1.45pm on Saturday.
The store was thoroughly disinfected and the food had to be destroyed, said police.
Launching the appeal on Wednesday, Inspector James Martin, of Lancashire Police, said: "That anyone could think this sort of behaviour is appropriate or amusing even in normal times is beyond me, but at this time of crisis when many people have been faced with empty shelves in some shops is flabbergasting."
Lancashire Police arrested two people, in Morecambe, on Wednesday, after the appeal for information.
A police spokesman said: "Inquiries into the incident continue. We would like to thank everyone who helped with the appeal.
"Your assistance is greatly appreciated as always."
