U.S. President Joe Biden, top left, Yoshihide Suga, Japan's prime minister, top right, Scott Morrison, Australia's prime minister, bottom left, and Narendra Modi, India's prime minister, on a monitor during the virtual Quadrilateral Security Dialogue (Quad) meeting at Sugas official residence in Tokyo, Japan, on Friday, March 12, 2021.  Photographer: Kiyoshi Ota/Bloomberg
US President Joe Biden, Japanese Prime Minister Yoshihide Suga, Australian Prime Minister Scott Morrison and Indian Prime Minister Narendra Modi during their virtual meeting last week. Bloomberg

Quad pact on vaccines could inject needless geopolitical tensions