B) 2. experimental measure of virulence Flashcards
1
Q
what does lethal does (LD) LD50 mean
A
number of bacteria that will kill 50% of test animal
2
Q
in mice the LD50 for salmonella given orally is
A
10^5
3
Q
for mice LD50 of salmonella by injection is
A
10, much lower because it bypasses the innate immune system
4
Q
infectious does for humains ID50 for Shigella and Salmonella
A
Shigella 10-100, Salmonella 10^5
