Question

The substance produced by a cell in viral infection that can protect other cells from further infection is:

• A. interferon
• B. colostrum
• C. histamine
• D. serotonin
  

Answer 1

The correct option is A interferon

Serotonin:

Serotonin acts as a neurotransmitter. It is synthesised by the mast cells and on signal reception, gets released in the extravascular space.

Colostrum:

Colostrum is the secretion released from the mammary glands just after child birth. Since colostrum is rich in antibodies, it confers passive immunity to the newborn.

Interferon:

Interferons are signaling proteins produced by virus-infected cells which protect other cells from infection. It alerts the immune system and the neighboring cells when a cell gets infected by the virus.

Histamine:

Histamines are chemicals present in mast cells, the release of which causes allergic reactions.

Final answer c. interferons