"Sapporovirus" Natural Recordings by Native Speakers
I couldn't find any information on the word "sapporovirus". It's possible that it's a made-up or non-existent word, or it could be a misspelling of a different word.
However, I found a reference to the "Sapporo virus", which is a variation of the norovirus that was identified in 2014. It was named after Sapporo, a city in Japan, where the virus was first isolated.