SHANGHAI (Reuters) – Shanghai reported nearly 25,000 locally transmitted COVID-19 infections on Sunday, as residents of China’s most populous city voiced complaints over food and basic supplies and concern spread that more cities may soon be in the same situation. Streets of the locked-down financial hub of 26 million people remained as curbs under the city’s “zero tolerance” policy allow only healthcare workers, volunteers, delivery personnel or those with special permission to go out. Shanghai’s case numbers are small compared to some cities globally, but it is battling China’s worst COVID o…