CBSE Class 9 Answered
Although Archana has
been suffering from a cold and cough she decided to appear for her class test. Classmates seated close to her had an
exposure to the infection being carried by Archana. However, only one of them actually suffered
from cold and cough. Explain,
what prevented rest of those
classmates from catching cold and cough in spite of their exposure to the infection.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Immune system of individuals fight off infection carrying microbes.
The immune system of those who did not suffer with cold and cough successfully caught off the microbes to which they were exposed.
Answered by | 04 Jun, 2014, 03:23: PM
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