Why are the "news" manufacturers suddenly insisting that the Chinese Virus did not come from there?

China now has billions of assets in the US. Many of these people have vested interest in China. As always, it's about the money.

to play up to the communist chinese

Because, as your question suggests, it is manufactured or 'fake' news.

To me, it doesn’t matter. However, I feel hopeful that with so many countries working on vaccine or other, one will come up with something.

Everyone is talking about Cuba’s work. Apparently their scientists are very close. The country sent their doctors to several hotspots to collect the data.

of course you cite sources