Dozens of French lawmakers have reported receiving death threats from suspected anti-vaccination protesters, as parliament starts to debate legislation that would require people to show proof of vaccination to go to a restaurant or cinema or take the train.

The new law, which would do away with the option to show a negative test instead of having the jabs, has the backing of most parties and is almost certain to be passed by the lower house in a vote late on Monday or early on Tuesday.

France has traditionally had more vaccine skeptics than many of its EU neighbors, but has one of the bloc's highest COVID-19 vaccination rates, with nearly 90% of those aged 12 and over now fully vaccinated.