一个人可能两次感染HIV病毒，这种现象被称为HIV超级感染（HIV Superinfection）。HIV超级感染是指已经感染HIV的个体再次感染不同毒株的HIV病毒。新毒株可能与原毒株在基因序列、耐药性和致病性上存在差异。

CINCINNATI (WKRC) — Local doctors are raising alarms about a potential superinfection that can occur alongside the flu, making individuals significantly more ill. According to medical experts ...