@WHO knows that #COVIDisAirborne, so:

how could @WHO make the announcement?

1.- Clear, firm and transparent, as Fauci did.
2.- Pretend as they already said it.
3.- Say that people don't need to know that.
4.- Focus on something else.

Here the tweet of March 28, and not only that: a continuous downplaying of the main transmission path. https://twitter.com/WHO/status/1243972193169616898?s=20

Private conversation with a top member of @WHO on October 1.

They don't delete that tweet to avoid being criticized.

No comments.

This is what we need from @WHO
and this http://covidisairborne.org 

We don't want to have this battle, we need to move on. I wouldn't want to show part of that private conversation either, but this is taking too long.

We are not going to criticize @WHO for doing the right thing, but for not doing it.

Bonus track:
My father was a very wise and good man, he once told me: "better to be red once than a thousand times yellow", which means to deal firmly with difficult situations at once.