Millions of Sydneysiders have been told to stay locked down at home unless they recently tested negative for Covid. Gladys Berejiklian admitted she feared people may be travelling around the city while unknowingly infectious, including essential workers. The plea comes after contact tracers discovered some of the latest cases in Fairfield had continued to work full shifts in offices for days while infected with the disease. Included in the latest tally was a visa centre lawyer who worked with the public in Fairfield for six days while infected. All workers in Sydney should be working from home unless they are essential, such as frontline workers, or their work can't be done from home, such as tradies and shop staff. NSW reported 112 new cases on Monday, and Ms Berejiklian warned it is 'almost impossible' for the state to lift restrictions on Friday, July 16 as originally planned. Some 34 of today's cases were infectious in the community and many of them had continued to turn up for work as normal while capable of spreading the disease. New South Wales Premier Gladys Berejiklian (pictured) has begged all Sydneysiders in hotspot suburbs to stay locked down at home unless they recently tested negative for Covid Ms Berejiklian said lockdown restrictions are unlikely to be lifted until the number of infectious cases in the community hits zero. But that won't happen if people carry on working while infected - even if they are considered an essential key worker, she said on Monday. 'Even if you regard yourself as an essential worker, especially in the Fairfield local government area, do not leave home if you have symptoms,' Ms Berejiklian pleaded. 'Do not go to work unless you absolutely know that you don't have the virus. 'Unfortunately, we are seeing very, very key workers leave the home with symptoms or else not knowingly spreading the virus.' NSW reported 112 new cases on Monday, and Ms Berejiklian warned it is 'almost impossible' for the state to lift restrictions on Friday, July 16 as originally planned. Seen here is a testing clinic in Fairfield on Monday Contact tracers discovered some of the latest cases in Fairfield had continued to work full shifts in offices for days while infected with the disease The premier said that key workers or anyone working on multiple sites in the Fairfield area should only leave home for work if it was vital and they had tested negative for Covid. 'We would prefer you stayed at home unless you absolutely have to leave the house and unless you can assure that you have a negative COVID test,' she said. 'That is really important for us to stress. It is up to all of us to see that number of exposures in the community go down. 'If you have the mildest of symptoms, get tested, stay home until health advise you otherwise.' The premier said that key workers or anyone working on multiple sites in the Fairfield area (pictured above) should only leave home for work if it was vital and they had tested negative for Covid She added: ' Too many essential workers doing essential work for us all are leaving work with symptoms or spreading the virus in their work place. 'That needs to stop.' Monday's triple-figure rise in coronavirus cases is the largest daily increase since April 2020. The state's outbreak that began on June 16 has now reached 678 infections. Of the new locally-acquired cases, NSW Health said 48 were still under investigation and 41 of them were household contacts of previously known infections. The one glimmer of good news is there were only 34 cases out in the community while infectious compared to the 45 announced on Sunday. Ms Berejiklian said lockdown restrictions are unlikely to be lifted until the number of infectious cases in the community hits zero. Seen here is a shopping grabbing groceries in Fairfield on Monday The premier warned the length of the lockdown was entirely dependent on Sydneysiders doing the right thing and playing by the rules. 'The future is in our hands. It really is up to us,' she said. 'Do not leave your home if you have symptoms. 'Do not go to work places, especially if you come from those local government areas that I have mentioned, if you suspect, even at 1% that you might have COVID. 'You have to get tested and stay home until you get the result. That is really important.' Monday's triple-figure rise in coronavirus cases is the largest daily increase since April 2020. The state's outbreak that began on June 16 has now reached 678 infections. Pictured here are locals in the streets of Fairfield on Monday And she added: 'Obviously, avoid GP clinics or medical centres or pharmacists if you feel you might have the disease. 'Do not go into those areas because, unfortunately, we are seeing medical practices have that happen to them.' All rights reserved for this news site (dailymail) and under his responsibility