People speak to each other as French President Emmanuel Macron gives a TV address to the nation on French TV at a bar, in Lille northern France, Tuesday, Nov 9, 2021. Macron issued a mass appeal Tuesday for people to get booster shots to fight rising virus infections that are raising concerns across Europe. Credit: AP Photo/Michel Spingler

French President Emmanuel Macron issued a mass appeal Tuesday for people to get booster shots to fight rising virus infections that are raising concerns across Europe.

Anyone over 65 who was vaccinated more than six months ago will need to get a booster shot by mid-December for their "health pass" to remain valid, Macron said.

He promised stepped-up enforcement of the health pass, which is required to go to all restaurants and many public venues in France. To get a pass, people must show proof of COVID-19 vaccination, a negative virus test or a recent recovery from the virus.

Booster shots, currently authorized in France for anyone over 65 or with underlying , will be expanded to those 50 and over in December, Macron said.

"Each of us must play our part" to avoid a deadly "fifth wave" of the pandemic, Macron said in a televised speech.

Stressing that most of those hospitalized in France with the virus are unvaccinated, Macron also appealed to the 6 million other unvaccinated French people to "get vaccinated. Protect yourself."

Nearly 75% of the French population is fully vaccinated, including 88% of adults. That is among the higher rates in Europe, but vaccinations have hit a plateau in recent weeks.

  • A man watches France's President Emmanuel Macron gives an address on television, Tuesday, Nov.9, 2021, in a bar in Bayonne, southwestern France. Macron issued a mass appeal Tuesday for people to get booster shots to fight rising virus infections that are raising concerns across Europe. Credit: AP Photo/Bob Edme

  • People listen as France's President Emmanuel Macron gives an address on television, Tuesday, Nov.9, 2021, in a bar in Bayonne, southwestern France. Macron issued a mass appeal Tuesday for people to get booster shots to fight rising virus infections that are raising concerns across Europe. Credit: (AP Photo/Bob Edme

  • A man watches as France's President Emmanuel Macron gives an address on television, Tuesday, Nov. 9, 2021, in a bar in Bayonne, southwestern France. Macron issued a mass appeal Tuesday for people to get booster shots to fight rising virus infections that are raising concerns across Europe. Credit: (AP Photo/Bob Edme

  • People speak to each other as French President Emmanuel Macron gives a TV address to the nation on French TV at a bar, in Lille northern France, Tuesday, Nov 9, 2021. Macron issued a mass appeal Tuesday for people to get booster shots to fight rising virus infections that are raising concerns across Europe. Credit: AP Photo/Michel Spingler

  • French President Emmanuel Macron gives a TV address to the nation on French TV channel TF1 at a bar in Marseille, southern France, Sunday, Nov. 7, 2021. Macron issued a mass appeal Tuesday for people to get booster shots to fight rising virus infections that are raising concerns across Europe. Credit: AP Photo/Daniel Cole

Macron also laid out ways that his government is trying to boost the economy.

The speech came as cases are going up again in many European countries and some hospitals are coming under renewed strain, as vaccination efforts slow and winter approaches.