Match the following choices to the statements in questions 7 and 8:
a. antirabies antibodies
b. HDC


Used for passive immunization.

Verified step by step guidance

1. Identify the key terms in the question: 'passive immunization'.
2. Understand that passive immunization involves the introduction of pre-formed antibodies into the body.
3. Recall that antirabies antibodies are pre-formed antibodies used to provide immediate protection against rabies.
4. Recognize that HDC (Human Diploid Cell) is related to rabies vaccination but is used for active immunization, not passive.
5. Match 'antirabies antibodies' with the statement 'Used for passive immunization' as they provide immediate protection by introducing antibodies directly.

Key Concepts

Passive Immunization

Passive immunization involves the administration of pre-formed antibodies to an individual, providing immediate but temporary protection against pathogens. This method is often used in cases where rapid immunity is needed, such as after exposure to rabies. The antibodies can be derived from human or animal sources and are effective in neutralizing toxins or viruses.

Antirabies Antibodies

Antirabies antibodies are specific antibodies produced in response to the rabies virus. They can be administered as part of post-exposure prophylaxis to prevent the onset of rabies after potential exposure. These antibodies work by binding to the virus, neutralizing it, and preventing it from infecting host cells.

HDC (Human Diploid Cells)

HDC refers to human diploid cells, which are used in the production of vaccines, including the rabies vaccine. These cells are cultured from human tissues and provide a suitable environment for the growth of the rabies virus, allowing for the development of inactivated vaccines. HDC vaccines are known for their safety and efficacy in inducing an immune response.