Health authorities are urging worshippers and funeral attendees to watch for COVID-19 symptoms after a woman who attended a number of Catholic services in Sydney’s south west tested positive to the virus.

NSW Health said those who attended the following services over a four-day period should self-isolate and get tested immediately if they develop symptoms.

• St Brendan’s Catholic Church Bankstown for one hour on July 16, from 6.30pm
• Ausia Funeral Services at Fairfield East on July 17, between 1:00pm and 8:00pm
• Funeral service at St Brendan’s Catholic Church, Bankstown for one hour from 10:00am on July 18
• Burial service at St John of God Lawn at Rookwood Cemetery on July 18, between 11.30-1:00pm
• Our Lady of Mt Carmel Catholic Church at Mt Pritchard for one hour from 7.30am on July 19

The warning comes after a woman in her 40s from the Fairfield area tested positive on Thursday after attending the services.

NSW Health said contact tracing was underway.

Tweet from @NSWHealth

The warning also comes on the same day NSW limited the number of people able to attend funerals to 100, as part of a tightening of COVID-19 restrictions.

When the restrictions were announced last Friday, NSW Premier Gladys Berejiklian said they would be particularly difficult for those grieving, but were vital to maintaining public health.

“[Funerals] are emotional occasions where people know each other and that increases the risk of transmission,” she said.

Earlier on Friday three Catholic schools in Sydney’s West closed for deep cleaning after four students tested positive to coronavirus.

Two of the cases are linked to Our Lady of Lebanon Cathedral at Harris Park, where a pop-up clinic has been running since Tuesday.

A record 36,169 tests were conducted in the 24 hours leading up to 8:00pm on July 23.

-ABC