Question

Anti-rabies serum contains antibodies that are developed in an immunized animal. The type of immunity in such an animal is
A. Artificial active immunity
B. Artificial passive immunity
C. Natural passive immunity
D. Natural active immunity

Answer 1

Hint:Anti-rabies serum is the vaccine made for the treatment of the viral disease called rabies that is caused by the passage of the virus through the infected animal.

Complete answer:
Whenever any infected animal attacks or bites any human, there are high chances that humans getting affected by the disease due to the animal virus. Rabies is one example of this. Rabies is a disease caused by rabies lyssavirus through animal saliva.
Symptoms of the disease include weakness, fever, and headache. This disease can be prevented by taking the anti-rabies vaccine before the incubation period (the period between the injection of the virus and showing symptoms). Immunity is the ability of a person to fight against the disease. A person might get immune to disease either naturally or by vaccination. It can be two types active and passive. Artificial active immunity can be immunity acquired by vaccination. Artificial passive immunity can be immunity acquired by induction of antibodies from another person. Natural active immunity can be immunity acquired by natural infection of an antigen that produces antibodies against it. Natural passive immunity can be immunity acquired from the mother when antibodies from the mother are passed to the child.

Hence, the correct option will be option A – Artificial active immunity.

Note: Vaccine is nothing but antigen (disease-causing agents) which are not that powerful in causing harm. They are inactive and are introduced into the human body so that the human immune system can recognize the antigen and produce the immune response against it. The first rabies vaccine was produced in 1964 for humans.