(AP) — New coronavirus cases dropped to zero in China for the first time Saturday but surged in India. And they overwhelmed hospitals across Latin America, both in countries lax about lockdowns and those lauded for firm, early confinement. Infections were also linked to a reopened restaurant and church in Germany. The pandemic’s persistence is frustrating authorities struggling to keep people safe and revive their economies. It is disrupting the Memorial Day weekend in the United States and collective celebrations around the Muslim world marking the end of the holy month of Ramadan. In countries with weak health care systems and impoverished populations, fighting the virus is increasingly difficult.