Question

"Mother's milk is considered very essential for the new born infant." Justify. What is a 'vaccine'? Explain the principle on which it works.

Accepted Answer

(a) Colostrum (The yellowish fluid) secreted by mother (during the initial days of lactation) has abundant antibodies or IgA to protect the new born baby or to provide passive immunity (b) • Vaccine is a preparation of antigenic proteins of pathogen or inactivated or weakened pathogen. • When a person is vaccinated the antibodies are produced in the body against particular antigens would neutralise the pathogenic agents during actual infection, Vaccines also generate memory B and T cells that recognize the pathogen quickly on subsequent exposure, and overwhelm the invaders with a massive production of antibodies.

(a)
"Mother's milk is considered very essential for the new born infant." Justify.
(b)
What is a 'vaccine' ? Explain the principle on which it works.

Marking-scheme solution

More from Human Health and Disease

(a)"Mother's milk is considered very essential for the new born infant." Justify.(b)What is a 'vaccine' ? Explain the principle on which it works.

Marking-scheme solution

More from Human Health and Disease

(a)
"Mother's milk is considered very essential for the new born infant." Justify.
(b)
What is a 'vaccine' ? Explain the principle on which it works.