The vaccination given for preventing tuberculosis is:

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?

Complete the given table:

Disease	Causative organism	Mode of transmission
Dengue fever	$... (a) ...$	$... (b) ...$
$... (c) ...$	Vibrio cholerae	Contaminated food and water
$... (d) ...$	$HIV$	$... (e) ...$
Common cold	Virus	$... (f) ...$

Which disease is not transmitted by mosquitoes?

It was diagnosed that a patient has lost the power of fighting against any infection.
$(i)$ Name the disease from which the patient is suffering.
$(ii)$ Name the pathogen responsible for the disease.

Name any two groups of micro-organisms from which antibiotics could be extracted.