It's hard to isolate a virus, like it's hard to isolate one human cell.

However, it exists, there are labs all around the world experimenting with them. There are even pictures under microscopes.

There is a test for the variants, it involves genetic sequencing. They take a bunch of viruses, grab bits of the sequences, and piece it together. It's messy, but it works. It's technology that is decades-old.

Even some of the rapid tests work because it will show some positive, but negative on the spike protein for Omicron because it's so different. So it's a cheap way to tell.

Untreated, this virus can fuck people up from sterility to dementia. I recommend having a home treatment kit at home to take at first symptoms.