Hay fever is due to

Hay fever in due to

Hay fever in due to

Faster breathing in high fever is due to

Hay fever is caused by

Hay fever is caused by

Hay fever is also known as allergic arthritis.

Hay fever is usually caused by:

Hay fever is a perennial allergy.

Hay fever is an allergic reaction to the presence of the following in the air:

Malaria fever is caused by a toxic substance formed due to proteolysis of haemoglobin in RBCs of man. This substance is: