India Looks to Low-Tech Coronavirus Solutions

NEW DELHI—The minister of health for the Indian state of Maharashtra needed a way to assure that international arrivals at risk for coronavirus went into isolation and stayed there.

His agency didn’t have the resources to quarantine all of them. It didn’t have a high-tech way to monitor home seclusion. But his team realized India does have an abundance of something else: indelible ink used to keep the country’s 900 million voters from casting multiple ballots. Applied to their hands after voting, it takes about two weeks to…

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