KUALA LUMPUR, Malaysia—A sharp rise in coronavirus cases tied to factories and workplaces has led to a Covid-19 resurgence in Malaysia, a sign of how industrial settings—where laborers often work in crowded and poorly ventilated conditions—can become vectors of contagion as global demand recovers.
Malaysia’s government this week counted 83 active clusters of infections connected to workplaces around the country, most prominently an industrial area that houses the world’s largest glove manufacturer. More than 2,500 workers…
