Last year we can do away with 24 hours or so of contact tracing on average to get a case history for the past 28 days, but this year because of the Alpha and then later Delta variants, 24 hours, which seemed fast is actually slow.
Last year we can do away with 24 hours or so of contact tracing on average to get a case history for the past 28 days, but this year because of the Alpha and then later Delta variants, 24 hours, which seemed fast is actually slow.