Koronavirus went to counterattack

In May of WHO declared pandemic end, but the virus did not disappear anywhere, moreover, Koronavirus continues to mutate. New, the strain causing concern of doctors and scientists received the informal name "pirolla". While it is not clear, whether protect from it vaccines or immunity of those who already had the old versions, each strain strongly differed from previous and in something the predecessor surely surpassed. Pirolla can be more dangerous in something than an omicron...