a) Infectivity – the pathogen ability to survive, and multiply (infects) in a host cell

b) Invasiveness – the ability to degrade and migrate through the extracellular matrix and invade the host cells.

c) Virulence – the ability of the pathogen to defeat the host defenses which is to increase the severity and also the longevity of the symptoms

d) Pathogenicity – the capacity to bring the disease situation. Pathogenicity is the sum of the effects of the destruction and obtrusiveness

e) Host range – which has a pathogen that can contaminate. A few pathogens have certain host range. In this manner, the disease is restricted to one host. Different pathogens have wide host extents, and they can bring about illness in numerous species

f) Horizontal …show more content…
The sickness relying upon the sort of irresistible specialists.

k) Opportunistic Pathogens – the ability of a similar microorganism that will cause an poor health effect in a susceptible host

l) Secondary Transmission – the spread of an infectious agents inside of a human population because of direct human-to-human contact between an essential case and the other case who gets to be contaminated or sick from that contaminated water or food.

m) Taxonomy and Strain – The meaning of the hazard concerning customary natural arrangement. Large impact of risk assessment is come from strain and taxonomy.The dose-response different in range between isolates cam be orders of magnitude. Several strain are not infective to human being. Moreover. the proportion of distinctive strains in the earth can