Q. 74.8( 4 Votes )
Give Reasons for the following :
It is said that, “if you had smallpox once, there was no chance of suffering from it again.” Why is it so?
The reason is that when a person suffers from small pox for the first time the body responds against it and remembers it. So, the next time the virus attacks the body responds with more vigour and eliminates the infection even faster than it was originally eliminated.
Rate this question :
How are diseases causing microbes spread through the air?Together with Science
State two consequences, which one has to face while dealing with an infectious diseases?Dr. P.S. Verma & Dr. V.K. Agarwal - Biology
Describe certain bacterial diseases of human beings.Dr. P.S. Verma & Dr. V.K. Agarwal - Biology
Explain the general ways of preventing infection.Dr. P.S. Verma & Dr. V.K. Agarwal - Biology
Give an account of some important viral diseases of human beings.Dr. P.S. Verma & Dr. V.K. Agarwal - Biology
Name the most common method to prevent infection?Dr. P.S. Verma & Dr. V.K. Agarwal - Biology
Classify the following diseases as infectious or noninfectious.NCERT Science - Exemplar