AIDS is not a congenital disease, because AIDS or acquired immunodeficiency syndrome, refers to the deficiency of acquired immune system and simply, acquired immunity is present after birth, not innate immunity, since we can say that innate immunity is present during birth.

**AIDS Transmission and Congenital Diseases**

AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV). While it can be transmitted from mother to child, it is not considered a congenital disease. This is because congenital diseases are typically present at birth and are caused by genetic or developmental abnormalities. In the case of AIDS, the virus is acquired after birth through specific modes of transmission.

**Modes of HIV Transmission**

HIV can be transmitted through various means, including:

1. Sexual Transmission: The most common mode of HIV transmission is through sexual contact with an infected person. Unprotected sexual intercourse, particularly vaginal or anal sex, can lead to the transmission of the virus.

2. Blood Transfusion: Prior to the implementation of rigorous screening procedures, HIV could be transmitted through blood transfusions. However, with current screening protocols, the risk of transmission through blood transfusion is extremely low.

3. Sharing Needles: Sharing needles or syringes with an infected person can transmit the virus. This mode of transmission is often associated with intravenous drug use.

4. Mother-to-Child Transmission: HIV can be transmitted from an infected mother to her child during pregnancy, childbirth, or breastfeeding. This mode of transmission is known as vertical transmission.

**Vertical Transmission**

Vertical transmission of HIV can occur during pregnancy, labor and delivery, or breastfeeding. The virus can cross the placenta and infect the fetus, leading to HIV-positive status at birth. Additionally, during labor and delivery, the baby may be exposed to the virus through contact with the mother's blood and other bodily fluids. Finally, breastfeeding can also transmit HIV if the mother is infected.

**Difference between Congenital and Acquired Diseases**

Congenital diseases are present at birth and are typically caused by genetic or developmental factors. These conditions are not acquired after birth. On the other hand, acquired diseases are acquired or developed after birth due to external factors such as infections, environmental exposure, or lifestyle choices.

**Conclusion**

In summary, while AIDS can be transmitted from mother to child, it is not considered a congenital disease. AIDS is an acquired disease caused by the transmission of HIV through various modes, including vertical transmission from an infected mother to her child during pregnancy, childbirth, or breastfeeding. Understanding the modes of transmission is crucial for implementing preventive measures and ensuring the well-being of both mothers and infants.