and has spawned an innumerable number of viruses , each with their own unique ways
of trying to outsmart the host .
This ancient battle has been waged for millions of years and has spawned an innumerable number of viruses , each with their own unique ways of trying to outsmart the host .
This ancient battle has been waged for millions of years and has spawned an innumerable number of viruses , each with their own unique ways of trying to outsmart the host .