Question

Which type of antibodies are best to protect against viral infections? Neutralizing antibodies. Opsonization antibodies. Complement activating antibodies. All of the above.

Answer 1

Option A-Neutralising Antibodies.

Neutralizing antibodies are both sufficient & necessary for protection against viral infections.

Neutralising antibodies are Antibodies that inhibit the infectivity of a pathogen by binding to it and blocking the molecules needed for it to enter cell .

Antibodies  neutralize  viruses by

1.Blocking attachment of Virus to the host cell

2.Preventing penetration of Virus into the host cell membrane

3.Interfere with uncoating of the virus within the cell.

** Opzonisation antibodies(opsonins) bind to the surface of an invading pathogen, make it more susceptible to phagocytosis.

**Complement activating antibodies can activate Compliment system which leads to a cascade of reactionson the surface of pathogens,generates active components which attack the infected cell