[samvher]

They don't say something different. The key part is who does not develop symptoms, i.e. ever. From what I understand the WHO basically distinguishes between asymptomatic transmission (which they say is uncommon), and presymptomatic transmission.

[rumanator]

> They don't say something different.

I would add that they only state that there are few reports of truly asymptomatic cases (thus suggesting that asymptomatic cases don't exist) and thus so far there have been no documented case of asymptomatic transmission, which is to be expected if asymptomatic cases don't exist.

[perf1]

I don't know. If you are right and they make that distinction. I think they even know much less about presymptomatic transmissions. Because why would they leave that information out.

[samvher]

Because they are handling their communication terribly. A while back there were headlines about this precise topic, i.e. WHO saying that asymptomatic transmission is rare - it caused quite a stir and a number of articles followed explaining the nuances and this distinction.