In which of the following diseases,close contact with infected persons or their belongings should be avoided?

How many of the following diseases can be classified as autoimmune diseases?
Rheumatoid arthritis,Myasthenia gravis,$AIDS$,$SCID$,Vitiligo,Hashimoto's disease,Multiple sclerosis,Cancer,Type-$I$ diabetes.

Given diseases: Pneumonia,Plague,Diphtheria,Common cold,Malaria,Ringworm,Amoebiasis,Dysentery,Typhoid,$AIDS$.
$\rightarrow$ Number of bacterial diseases $- P$
$\rightarrow$ Number of viral diseases $- Q$
$\rightarrow$ Number of protozoan diseases $- R$
$\rightarrow$ Number of fungal diseases $- S$
Select the correct option for $P, Q, R$ and $S$.

Identify the number of correct statements from the following:
$(1)$ Gene therapy is used in the treatment of $ADA$ deficiency.
$(2)$ Tetanus causes sustained muscle contraction. There is a lack of relaxation phase.
$(3)$ Cigarette smoking leads to asthma in the respiratory system.
$(4)$ $A$ transplanted kidney in a patient can fail due to cell-mediated immunity.
$(5)$ Serum globulin is an antibody.

Which one of the following is a mental disability?

Match List $I$ with List $II$:

List $I$	List $II$
$A.$ Common cold	$I.$ Plasmodium
$B.$ Haemozoin	$II.$ Typhoid
$C.$ Widal test	$III.$ Rhinoviruses
$D.$ Allergy	$IV.$ Dust mites

Choose the correct answer from the options given below: