Early on at least one cruise was tied up in Japan while the passengers were confined to their cabins while the HVAC system spread the virus around.
Yep, it's aerosols and I'm sure happy I have had three shots. Hopefully the shots and vitamin D will get me through omicron which will likely come to all of us.
It's more of a confirmation thing, I think. We've been pretty sure about Covid being airborne since early 2020. This probably helps convince some of the few that insist it isn't.
"Here, we measured outward emissions of micron-scale aerosol particles by healthy humans performing various expiratory activities while wearing different types of medical-grade or homemade masks. Both surgical masks and unvented KN95 respirators, even without fit-testing, reduce the outward particle emission rates by 90% and 74% on average during speaking and coughing, respectively, compared to wearing no mask, corroborating their effectiveness at reducing outward emission."
>Surprisingly, wearing an unwashed single layer t-shirt (U-SL-T) mask while breathing yielded a significant increase in measured particle emission rates compared to no mask, increasing to a median of 0.61 particles/s. The rates for some participants (F1 and F4) exceeded 1 particle/s, representing a 384% increase from the median no-mask value.
Double cloth had a higher but not statistically significant increase in particle count (so equivalent to being unmasked) while vented N95s reduced particle surprisingly well.
What I did strange is that the cloth masks are mostly stuffier and harder to breathe than the surgical ones, which filter much better.
The FFP ones are of course the worst to use but also the best at filtering.
Either way I can't wait till we can safely get rid of all of them though... I wish there were powered ones with fans to pull in filtered but fresh air. But the only one I've seen is the Razer Hydra and it's always out of stock. It's also huge and looks like a WW2 gas mask so it's not really street smart.
Clearly you aren’t in the Netherlands, where the authorities only started advocating adequate ventilation a few months ago. Before that washing your hands was more important.
Early on at least one cruise was tied up in Japan while the passengers were confined to their cabins while the HVAC system spread the virus around.
Yep, it's aerosols and I'm sure happy I have had three shots. Hopefully the shots and vitamin D will get me through omicron which will likely come to all of us.