Anemia is caused in which of the following diseases?

Which of the following is an autoimmune disease?

Identify the odd one out in the context of diseases.

Which pair represents diseases spread through the air?

Match the diseases in Column-$I$ with their causative organisms in Column-$II$ and select the correct option:

Column-$I$ (Disease)	Column-$II$ (Causative Organism)
$(a)$ Typhoid	$(i)$ Wuchereria
$(b)$ Pneumonia	$(ii)$ Plasmodium
$(c)$ Filariasis	$(iii)$ Salmonella
$(d)$ Malaria	$(iv)$ Haemophilus

Identify the molecules $(A)$ and $(B)$ shown below and select the right option giving their source and use.
| Molecule | Source | Uses |
| :--- | :--- | :--- |