Table 15.2
$$\begin{array} { | l | c | }
\hline \text { Bacterium } & \text { ID50 } \
\hline \text { E. coli } \mathrm { O } 157 : \mathrm { H } 7 & 20 \
\hline \text { Legionella pneumophila } & 1 \
\hline \text { Shigella } & 10 \
\hline \text { Treponema pallidum } & 57 \
\hline
\end{array}$$
-Which organism in Table 15.2 causes the most severe disease?
A)E)coli O157:H7
B)Legionella pneumophila
C)Shigella
D)Treponema pallidum
E)It cannot be determined from the information provided.

Question

Table 15.2
 $$\begin{array} { | l | c | } 
\hline \text { Bacterium } & \text { ID50 } \
\hline \text { E. coli } \mathrm { O } 157 : \mathrm { H } 7 & 20 \
\hline \text { Legionella pneumophila } & 1 \
\hline \text { Shigella } & 10 \
\hline \text { Treponema pallidum } & 57 \
\hline
\end{array}$$
-Which organism in Table 15.2 causes the most severe disease?
A)E)coli O157:H7
B)Legionella pneumophila
C)Shigella
D)Treponema pallidum
E)It cannot be determined from the information provided.

Quizplus · Accepted Answer

The severity of a disease is not determined by the ID50 value, which only indicates the number of organisms required to infect 50% of a test population. The table does not provide information on disease severity, symptoms, or outcomes.

Table 152 -Which Organism in Table 15