That's done by staying current and not comparing something nearly a year old to something recent. That is likely to not be consistent, especially as we've learned so much over the past nine months.
You remind me of a big criticism I often hear from an anti-vax
friend...."Science is always getting it wrong! Can't trust it."
His background & general attitude is that truth is permanent,
eg, the Bible, definitions of words. Change is a sign of failure.
We're dealing with a "novel corona virus". This means that
there'll be learning by making & correcting mistakes. It's the
best method we have, since perfect a priori knowledge of the
natural world is impossible.