People walk near a fast COVID-19 testing tent near the Arc de Triomphe in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)
People line up in front of a fast COVID-19 tests tent near the Arc de Triomphe in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)
A man walks past a Christmas decoration on the Champs Elysees Avenue in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)
A boy walks near a fast COVID-19 testing tent near the Arc de Triomphe in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)
People line up in front of a fast COVID-19 testing tent near the Arc de Triomphe in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)
A woman wearing a face mask walks on the Champs Elysees Avenue in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)
People wearing face masks walk near the Arc de Triomphe in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)
A woman carrying shopping bags walks on the Champs Elysees Avenue in Paris, France, Dec. 23, 2021. (Xinhua/Gao Jing)