(Bloomberg) -- Coronavirus measures in England are failing to control the spread of the disease, scientists warned, adding pressure on U.K. Prime Minister Boris Johnson to introduce another national lockdown.Infections are doubling every nine days and an estimated 960,000 people are carrying the virus in England on any one day, according to the latest findings from Imperial College London and Ipsos Mori, which is conducting one of the country’s largest studies of the disease. The reproduction rate of the virus -- a measure of how many people on average are infected by a single carrier -- has risen to 1.6, compared to 1.2 when the last figures were published Oct. 9.The stark results of the Imperial study come as Johnson faces growing calls to impose even tighter social restrictions in the fight against the virus, as deaths and cases climb once again. Elsewhere in Europe, governments are already taking action: France has announced a new monthlong nationwide lockdown and Germany has imposed its toughest rules since the spring.So far, Johnson has resisted a second national lockdown, preferring a localized tiered approach where regions with the highest infection rates face tougher social distancing rules, including a ban on household mixing and closing pubs that don’t sell meals.“The second wave of the epidemic in England has now reached a critical stage,” the scientists said in the report led by Steven Riley, professor of infectious disease dynamics at Imperial. “Our results suggest strongly that one or more of the policies themselves, the timing of tier advancement, or levels of compliance, have not been sufficient to date to achieve control.”Winter PeakThe Imperial findings cohere with new modeling by the government’s emergency scientific committee SAGE, which suggests the U.K. is on course for a prolonged winter peak in the pandemic where there will be more deaths than last spring.The opposition Labour Party, as well as Johnson’s own scientific advisers last month, have called for a temporary “circuit breaker” national lockdown to get the virus under control. Labour called on Johnson to hold a press conference Thursday on the government’s Covid strategy.“People will be alarmed and worried and looking for reassurance from ministers,” Jonathan Ashworth, Labour’s health spokesman, said in a statement on the Imperial College study. “Businesses are fearful that a delay in taking decisive national action will create further, deeper uncertainty for the economy.”Britain’s death toll from the second coronavirus wave could reach 85,000 in a “reasonable worst case scenario,” the Telegraph newspaper reported, citing SAGE documents.Avoiding Lockdown“It is right to try everything in our power to avoid a blanket national lockdown, it brings with it great damage to people’s lives and livelihoods,” Housing Secretary Robert Jenrick told BBC Radio 4 on Thursday. “Each country has to take its own balanced judgment.”Nottinghamshire was the latest area to move into the government’s highest level of restrictions on Wednesday, joining the likes of Greater Manchester, South Yorkshire and Merseyside.The U.K.’s national coronavirus deaths and cases continue to rise: 310 new deaths from Covid-19 were reported on Wednesday, following the 367 on Tuesday which was the highest daily total since May. The number of daily positive cases rose by 24,701, compared to 22,885 the day before.The surge is coming as the government’s key test-and-trace program continues to miss key targets, hampering efforts to contain the disease. The Guardian newspaper reported government officials have asked local health chiefs to deploy new 30-minute saliva kits to accelerate mass screening.“The high prevalence already reached and the rapid acceleration mean that inevitably there will be large numbers of hospitalizations and deaths,” the scientists said in the Imperial report. “Whether via regional or national measures, it is now time-critical to control the virus.”(Updates with Ashworth comment in eighth paragraph, Jenrick in 10th)For more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2020 Bloomberg L.P.