Human immunodeficiency virus (HIV) is passed from one person to another through transferring blood or sexual secretions. “The most important thing is if the exposure was a high risk is to get the medications against HIV,” said Hattiesburg Clinic Infectious Diseases Luis Marcos, MD. “[It is] usually two or three medications for 28 days, and they have to be followed up by tests in the blood.”
Marcos said that the first test should be done quickly after exposure. “After the exposure you have a 10 day period where there is no way you could know if you were infected,” said Marcos. “After 10 days, the virus will stop multiplying in the blood, so that’s when you can do the first test.

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