Sep 20, 2009
Hello Doctor. How are you. Well I would like to know. How much of the virus has to be in some ones system to give it to someone. In other words like whats the # of the viral load. Or it really does not matter @ all.
Response from Dr. McGowan
Thanks for your question.
The higher the viral load in the blood and genital secretions (such as the semen), the higher the chance of spreading the virus to someone else. However, there is no "low end" to the level that virus could be transmitted. There have been cases of virus spread from mother to child during pregnancy even with "undetectable" viral loads. Sometimes the viral load can be undtectable in the blood and still be present in the semen.
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