Dr. Mateusz Plucinski

A colleague told me to check the news and specifically related to the Japan cruise ship.

And a day later, I was on my way to Japan.

It was definitely one of the first settings in which we had done universal testing, regardless of symptoms.

around half the people that they were coming back with positive tests were asymptomatic at the time of the test.

Yes.

Yeah, it is high.

So I think at the time, it was definitely a surprising finding.

But the thing to understand is that there's multiple reasons for having a positive test while asymptomatic.

And you're not showing symptoms at the time, but you will eventually develop symptoms.

When we administered this questionnaire and actually asked,

really detailed questions about what symptoms passengers had experienced on board the ship, it turned out that only around 20% were truly asymptomatic while on board the ship.

Based on the studies where we've done universal testing, it does look like the majority of individuals will develop some symptoms.