Boris Johnson pledged "creative and imaginative" job protection measures when he called for a new economic bailout following the revelation of new coronavirus restrictions.
The damage to the economy could increase if more stringent measures are required. Ministers warn that a second lockdown may be required if the new rules are disregarded.
And a member of the government's scientific advisory group on emergencies (Sage) warned that tighter curbs could definitely be required as existing measures don't go "nearly far enough" to get the coronavirus under control.
On the Prime Minister's questions, Mr Johnson has been challenged repeatedly over the looming prospect of corporate and worker support disengagement, despite the prospect of the recent restrictions remaining for six months.
The vacation program, which has cost the government £ 39.3 billion so far, expires in late October.
"What we are going to do is continue to put our arms around the people of this country who are going through very difficult times and come up with the appropriate creative and imaginative plans to keep them working and the economy moving." , he said.
Union leader Sir Keir Starmer asked "when will the Prime Minister finally act" amid calls by the Governor of the Bank of England, Andrew Bailey, the Federation of British Industries and Unions, to continue to provide support after the vacation ends.
Chancellor Rishi Sunak is reportedly working on a new German system to avoid mass unemployment after the vacation is over. Government and business are sharing the cost of increasing wages for workers who can only work part-time due to the pandemic.
Mr Johnson said, "These are difficult times indeed and I have no doubt that there are many companies and many employees who experience great fear and uncertainty and we will do our best to protect them during this time."
The Prime Minister hopes the measures announced for England on Tuesday – including an invitation to office staff to work from home, a 10 p.m. curfew on pubs and restaurants, and wider use of face coverings – will eliminate the need for tougher interventions like a second will avoid curfew.
In Scotland, First Minister Nicola Sturgeon went a step further and banned home visits.
However, Professor John Edmunds, a member of the government's Scientific Advisory Group on Emergencies (Sage), said that while ministers "did something", the bar and restaurant curfew is likely to have a "trivial" effect.
He told BBC Radio 4's Today program: "Overall, I don't think the action has gone far enough. In fact, I don't even think the action in Scotland has gone far enough."
The new strategy for England was announced six months after the first lockdown was introduced in March.
Prof Edmunds, speaking in person, said that action was not taken quickly enough at the time and that this "mistake" is about to be repeated.
He warned: "I suspect very tough measures will be taken across the UK at some point, but it will be too late again."
Another government adviser suggested that an indoor mixing ban in England "could come very soon".
He said if further action is needed they will "be more intrusive or we could get caught in a national lockdown" adding, "we want to avoid that."
The number of confirmed coronavirus cases in the UK has now exceeded 400,000, and another 4,926 cases were confirmed in the laboratory on Tuesday at 9:00 a.m.
Another 37 people died within 28 days of testing positive for Covid-19 on Tuesday.