February 18th, 2013
This is the period immediately after the virus enters the body. At this stage, the virus multiplies rapidly and the risk of transmission is heightened. This first phase can be accompanied by symptoms resembling the flu, such as fever, sore throat, muscle soreness, fatigue, swollen lymph nodes, and skin rashes. These symptoms, which disappear after a few weeks, are not present in every infected person. The primary infection stage can sometimes go completely unnoticed. This is the period when the immune system produces antibodies to protect itself against the virus.
Source: L’essentiel du VIH/sida, Portail VIH/sida du Québec, Benoît Lemire