Widal test is used for the diagnosis of
Malaria
Pneumonia
Tuberculosis
Typhoid
Female Anopheles is
Which of the following is based upon the principle of antigen-antibody interaction ?
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
Artificial active immunity can be acquired from