Lunar New Year celebrations have been postponed and businesses are temporarily shutting their doors as unfounded fears about coronavirus in Eastwood have resulted in people staying away from the north-western Sydney suburb.

Eastwood, where almost 40 per cent of residents identify as having Chinese ancestry, has been one of the suburbs targeted in social media posts falsely warning people they should avoid because of coronavirus. NSW Health has rejected these posts as fake.

A misinformation campaign about coronavirus has led to drops in shopper numbers in Eastwood. Credit:Nick Moir

There have been no new confirmed NSW infections since Tuesday, although 16 people - including a three-year-old - have been isolated while waiting for test results.

"Since testing began 67 patients have tested negative and have been ruled out," chief health officer Kerry Chant said on Friday.