WHO世界卫生组织：2026-2035年水、卫生设施、卫生和废物战略报告（英文版）

Unsafe water, sanitation and hygiene (WASH) still drive at least 1.4 million preventable deaths each year, while climate shocks, outbreaks, migration and aging infrastructure present additional challenges. Despite gains since 2015, 1 in 4 – or 2.1 billion people globally – still lack access to safely managed drinking water, including 106 million who drink directly from untreated surface sources; 3.4 billion people still lack safely managed sanitation, including 354 million who practice open d