Frequently asked question: What is the effect of an STD on the transmission of HIV?

If you have a sexually transmitted disease (STD) in addition to an HIV infection, the chance of transmitting HIV is greater. That is because an STD often causes vulnerable mucous membranes with small wounds. An STD also increases the number of HIV particles. And particularly when you have wounds, you have more 'local' immune cells (CD4 cells) right where the HIV is heading for.

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