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18 November, 21:15

Why is a second blood test necessary three months after a person thinks he or she has been exposed to hiv?

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  1. 18 November, 21:18
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    It takes 3 months for antibodies
  2. 18 November, 21:44
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    The antibodies to the HIV virus may take up to three months to appear in the blood of the infected person.

    Therefore, the second blood test is necessary three months after a person thinks that he/she has been exposed to HIV to check the presence of these antibodies and confirm whether the person is infected or not.
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