It could be for a number of reasons, a natural dip in the number of deaths, reported numbers are wrong, the virus they’re dealing with has mutated to a less deadly strain, or they’re having better success at preventing those affected from dying. I hope it’s the last two!
From your lips to God's ears.
It'd be great if whoever designed this designed it to self destruct after so long. I don't know if such a thing is possible but I sure hope for it.