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After over a month of a particularly strict lockdown against COVID-19, in which even walks are banned, Indians perching on terraces and balconies for what little fresh air they can get agree on one thing: Now is time to think about what comes next. Among these is a contact tracing app, Aarogya Setu (Bridge to Health), which has been downloaded more than 50 million times in less than two weeks from its launch.
Given the scale and risks of the pandemic, some public health experts have encouraged contact tracing apps, despite concerns about privacy. But proximity doesn’t take into account factors …
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