Iranian man Matin, 22, wears a gas mask symbolically as he poses for a photo at a street in Tehran, Iran April 22, 2021. The fourth wave of coronavirus infections has started within the past few days and the Iranian government has announced a “red” situation, meaning extremely high infection probability. Picture taken April 22, 2021 with a red filter. (Photo by Majid Asgaripour/WANA (West Asia News Agency) via Reuters)
