Which disease is not transmitted by mosquitoes?

Mahima is suffering from cholera. It is likely that the children sitting around her will be exposed to the infection:
$(a)$ Do all the students get infected and suffer from disease?
$(b)$ List two major symptoms of cholera.
$(c)$ What are the different ways of spread of this disease?

Choose the wrong statement:

Which one of the following diseases is caused by bacteria?

You are aware of the $Polio$ $Eradication$ $Programme$ in your city. Children are vaccinated because:

Who discovered the 'vaccine' for the first time? Name two diseases which can be prevented by using vaccines.