The SARS-CoV-2 virus is still very present in the world and affects millions of people, but it is precisely the variants that worry science given its ease of passing from human to human.
And as long as the prevalence of the virus continues globally, the possibility of further mutations is high.
But, as Dr. Miguel Pita, from the Autonomous University of Madrid, tells us, the hosts of the virus know how to fight it.
Guillermo Arduino talks with the author of the book «A day in the life of a virus».