DETROIT (AP) — Early last March, Detroit Mayor Mike Duggan warned of a virus that already had sickened tens of thousands around the globe, saying it wouldn’t be long before a city resident would be infected. He was right. COVID-19 hit Detroit hard. More than 30,000 cases have since been confirmed in the city, and close to 1,900 residents have died. But Michigan’s chief medical executive says fast action by city leaders early in the pandemic slowed the rampant advance of the coronavirus in Detroit and its majority Black population. Now the push to vaccinate is gaining steam.