Health authorities hope they can catch any potential spread of coronavirus at a major Sydney shopping centre after multiple visits by someone who later tested positive for COVID-19.

A confirmed case visited the Bankstown Central Shopping Centre on Wednesday, January 6, between 11.30am and 2pm, NSW Health said last night.

Anyone who was at the Target, Myer, Smiggle, Big W, or Best and Less stores or at Oporto in the food court between those hours is considered a casual contact and must get tested immediately and self-isolate until a negative result is received.

Big w (Supplied)NSW Health said the same warning applied for anyone who visited Big W, Smiggle or Oporto in the food court at the shopping centre between 1pm and 2.30pm on Friday, January 8.

Anyone who visited the following venues at these times is also a casual contact who needs to be tested:

• Thai Hung Supermarket on Illawarra Road in Marrickville on December 31 between 3.45pm and 4.45pm
• Service NSW on North Terrace in Bankstown on January 8 between 11.45am and 1pm