Because a virus is a virus is a virus. Way to simple of an "organism" to have a lot of variation? Virii use camouflage to hide from the bodys immune system. Vaccines are the wrong approach, instead attack its life cycle.
Because a virus is a virus is a virus. Way to simple of an "organism" to have a lot of variation? Virii use camouflage to hide from the bodys immune system. Vaccines are the wrong approach, instead attack its life cycle.