Someone who claimed there was many vaccines against it saying someone doesnt understand ....oh the ironyI see, you really don't know what you're talking about. There are multiple, completely unrelated, viruses that result in what we call the common cold. It isn't a single virus with minor mutations (like Covid, which has variations but they're relatively small), it is a large number of completely different ones.
Relatively small guess thats why the manufacturers and governments were panicking that it wouldnt even give protection over the indian variant which in relative terms was one of the first