Question

Passive immunity is obtained through injecting
a) Anti-biotics
b) Vaccines
c) Anti-bodies
d) Antigens

Answer 1

Hint : They are Y-shaped proteins that bind to the Body’s foreign invaders and signal the immune system to get to work.

Complete answer : Immunity is defined as the ability of the body to protect itself from any kind of infectious disease. When a body is immune to a disease, then the body’s immune system becomes strong. The immunity that develops after a person receives the immune system, most commonly it is known as Antibodies, from another person. Passive immunity may also occur naturally, such as when an infant receives a mother’s antibodies through the placenta. Passive immunity provides immediate protection against an anti-gen but it does not provide long-lasting protection. The use of anti-bodies to treat specific diseases led to attempts to develop immunization against the disease.
Antibiotics are the medicines that help in stopping the infection in the body but they do not provide passive immunity to our body. Vaccines help in protecting from any kind of disease and it contains a small amount of germs. Antigens help in producing antibodies and it may be chemical, bacteria, virus etc. So, passive immunity is only provided by anti-bodies.
Thus, the correct answer is option C i.e. antibodies.

Note : Antibodies were first to use to treat disease in the late 19th century as the field of bacteriology was emerging. The first success story involved diphtheria, a dangerous disease that obstructs the throat and Airway of those who contracted. Antibodies are the “ search” batalian of the immune system’s search and destroy system tasked with finding an enemy and marking it for destruction.