LONDON — The British government is defending its strategy for combatting a second wave of coronavirus infections from criticism that new restrictions didn’t go far enough to stop the exponential spread of the virus.

Prime Minister Boris Johnson unveiled a slate of new rules on Tuesday to stem the renewed outbreak, including a 10 p.m. curfew on bars and restaurants, increased use of face masks and again encouraging people to work from home.

Foreign Secretary Dominic Raab told Sky News on Wednesday that the government’s approach was “focused, balanced and proportionate.” He says that if everyone complies with the measures, they will be enough to prevent a second national lockdown “with all the impact on society and families but also the damage it would do to businesses.”

Many health experts said the government’s plan wouldn’t be enough to stop the rapid spread of COVID-19 infections.

The dean of epidemiology and population health at the London School of Hygiene and Tropical Medicine, John Edmunds, says the government needs to quickly impose much wider restrictions or risk losing control of the virus.

Edmunds told the BBC: “We will have let the epidemic double and double and double again until we take those measures."