The foetus gets immunized after receiving antibodies from mother through placenta. This type of immunization called

Options

A. Active immunity
B. Innate immunity
C. Passive immunity
D. All of these

Answer

**Step-by-Step Solution:**

1. **Understanding Immunization**: Immunization refers to the process by which an individual's immune system becomes fortified against an agent (known as the immunogen). This can occur through various means, including the transfer of antibodies.

2. **Role of the Placenta**: During pregnancy, the placenta serves as a vital organ that facilitates the exchange of nutrients and waste between the mother and the fetus. It also plays a crucial role in the transfer of antibodies.

3. **Types of Antibodies Transferred**: The mother transfers specific types of antibodies to the fetus through the placenta. The primary antibody that crosses the placenta is Immunoglobulin G (IgG). This transfer provides the fetus with passive immunity.

4. **Definition of Passive Immunity**: Passive immunity is a form of immunity that occurs when antibodies are transferred from one individual to another. In this case, the fetus receives antibodies from the mother, which helps protect it from infections during the early stages of life.

5. **Colostrum and Antibodies**: After birth, the mother continues to provide antibodies to the newborn through her milk, specifically colostrum, which is rich in Immunoglobulin A (IgA). This further enhances the newborn's immune protection.

6. **Conclusion**: Therefore, the type of immunization that the fetus receives from the mother through the placenta is called passive immunity.

**Final Answer**: The type of immunization is called **passive immunity**.

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