Which of the following pairs is correct
House fly-Yellow fever
Bed bug -Kala azar
Sand fly -Amoebic dysentry
Culex -Filariasis
Sickle cell aneamia is more common in South Africa. This is due to
First triple antigen vaccination is given to the child at the age of
The antibodies are
What constitutes the Immune system and what role does it play in the Human body ?
The letter $T$ in $T-$lymphocyte refers to