Person $^{\prime}A^{\prime}$ cannot step out of his house. He has to spend his entire life in sterile isolation otherwise, he would quickly contract a fatal infection. This person has almost no effective immune system. This disease is also called as baby in a bubble syndrome. Identify the disease, this person $^{\prime} A ^{\prime}$ is suffering from
Cystic fibrosis
Diabetes
$AlDS$
$SCID$
The poisons produced in the body by bacteria are called
Antigen binds to antibody. The binding is result of
What is true about $T-lymphocytes$ is mammals?
Which of the following is bacterial disease
Nobel Prize for medicine was given for confirming the role of Helicobacter pylori in causing