virulence
The degree or ability of a disease-causing organism (e.g. a bacterium, virus or parasite) to cause disease.
All official European Union website addresses are in the <b>europa.eu</b> domain All official European Union website addresses are in the <b>europa.eu</b> domainThe degree or ability of a disease-causing organism (e.g. a bacterium, virus or parasite) to cause disease.