Coronavirus restrictions on NSW hospitality venues will be extended to gyms, including the requirement for a permanent on-site hygiene marshal, as the state reports 19 new COVID-19 cases.

Of the 19 cases in the 24 hours to 8pm on Tuesday, 10 were connected to the Thai Rock Restaurant at Wetherill Park, taking the size of that cluster to 85.

The restaurant’s sister Thai Rock in Potts Point was connected to two additional cases, taking the size of that cluster in the densely-populated eastern Sydney suburb to seven. One new case was also linked to the nearby The Apollo eatery.

• Senator visited COVID-hit restaurant

NSW Health has yet to establish a link between COVID-19 cases at the two Thai Rock restaurants and are still investigating.

Just two of the 19 cases on Wednesday were in hotel quarantine.

The case load has prompted Queensland Premier Annastacia Palaszczuk on Wednesday to ban all greater Sydney residents from the state from Saturday.

“NSW is holding the line but as I’ve been saying for a number of weeks, we’re at a critical stage of the pandemic,” Premier Gladys Berejiklian said.

Tweet from @AnnastaciaMP

Gyms in NSW, meanwhile, will be compelled from Saturday to register a COVID-safe plan and have a dedicated hygiene marshal on site to ensure social distancing, equipment cleaning and hand sanitiser

This includes 24/7 gyms, which are typically not staffed at all times.

Fitness First gym in Kings Cross on Tuesday confirmed one person who attended the gym for a class on July 20 had tested positive.

Two more pop-up COVID-19 testing clinics have also been set up in Sydney’s east as NSW health authorities monitor the Potts Point cluster.

Tweet from @NSWHealth

A clinic opened up in Surry Hills on Tuesday and another will open from noon on Wednesday in Rushcutters Bay Park, down the road from Potts Point.

Two infected Thai Rock diners visited the nearby Cruising Yacht Club Australia in Rushcutters Bay on July 23, 24 and 26, with the venue’s staff to be tested.

The prestigious members’-only club, which is the home of the Sydney-to-Hobart annual sailing race, has closed until August 1 for deep cleaning.

Several other restaurants in the eastern Sydney suburb have voluntarily closed as a precaution.

All residents and visitors to Potts Point have been asked to seek COVID-19 testing if they experience any respiratory symptoms.

A primary school in western Sydney, meanwhile, will be closed for at least one day after a student tested positive to COVID-19.

Bayanami Public School in Parramatta will be closed on Wednesday to allow time for the school to complete contact tracing and cleaning.