From a mid-September peak of a million active cases, India's infection/death charts now look like classic bell-curves.

By the middle of last week, India was barely counting an average of 10,000 Covid cases every day. The seven-day rolling average of daily deaths from the disease slid to below 100. More than half of India's states were not reporting any Covid deaths. On Tuesday, Delhi, once an infection hotspot, did not record a single Covid death, for the first time in 10 months.

It's not due to the vaccine, which was only rolled out recently and in insignificant numbers to have had an impact.

It's too early to know if this could become a world-wide trend but it's worth watching. Would be great for the vax makers - they could claim it was all because of their drugs.