[alex_smart]

> COVID has an incubation time of 7-14 days.

That's for symptoms. Covid is usually expected to show up in tests after 4-5 tests.

>Why would people be positive at the event?

The Kumbh Mela is not a one-day event. The event had already been underway for 10 days for the period under discussion.

In any case, testing data is available from Haridwar for the entire month now. Is this a fourth mutant of Covid that never shows up in tests?