It may only be the 28th in the West, but thanks to time zone differences, it is the 29th in Japan!
“And the relevance of this is?” Well it means Vaccine is now available on the Switch eShop and having downloaded the game himself, here’s Barry Dunne of Nintendo Impact Gaming with 16+ minutes of footage of the Nintendo Switch version of Vaccine!
Vaccine will head West next month, but if you can’t wait till then before getting it, the Japanese version that is available now, does feature English, so there’s nothing to stop you from getting it now if you’d rather.
Source: Nintendo Impact Gaming! (YouTube)