A lack of funding could delay late-stage trials of the first new vaccine against tuberculosis for more than a century, warned Bill Gates, whose foundation is backing the development of the shot.

Asking the world to prioritize saving lives in the world’s poorest countries is increasingly challenging in a world still rocked by the COVID-19 pandemic, the threat of climate change, rising energy costs and the war in Ukraine, according to Bill Gates.

South Korea agreed on Tuesday to expand its global health partnership with the foundation set up by Microsoft Corp. (MSFT.O) co-founder and philanthropist Bill Gates.