Which of the following is not a cause of transmission of HIV ?

Options

A. Multiple sexual partners
B. Sharing infected needles
C. Mosquito bite
D. Transfusion of contaminated blood

Answer

To determine which of the following options is not a cause of transmission of HIV, we will analyze each option provided:

1. **Multiple sexual partners**: Engaging in sexual intercourse with multiple partners, especially without protection, increases the risk of HIV transmission. This is a recognized route of transmission.

2. **Sharing infected needles**: Sharing needles that have been used by an HIV-infected person can transmit the virus through blood. This is another established method of transmission.

3. **Mosquito bite**: Research has shown that HIV cannot replicate within mosquitoes. Therefore, mosquitoes do not transmit HIV. This option is not a cause of HIV transmission.

4. **Transfusion of contaminated blood**: Receiving blood that is contaminated with HIV-infected blood can lead to transmission. This is a well-known route of transmission.

Based on the analysis, the option that is not a cause of transmission of HIV is:

**Answer: Mosquito bite (Option C)**