Question

Pathogen A has an ID50 of 50 particles, pathogen B has an ID50 of 1,000 particles, and pathogen C has an ID50 of 1 × 106 particles. Which pathogen is most virulent?
pathogen A
pathogen B
pathogen C

Answer 1

Answer:

Option A, pathogen A

Explanation:

ID50 is a way to measure the virulent efficiency of a pathogen. ID50 for a pathogen depicts the number of pathogens required to infect or cause the associated disease with in 50 percent of any population sample.

This means that 50 pathogens A can infect 50 percent  of any sample population.

While 1000 pathogen B and 1000000 pathogen C are required to infect 50 percent  of any sample population.

hence, Most virulent pathogen is Pathogen A