Sentences with phrase «vaccine viruses persist»

But vaccine viruses persist in the environment and in a few people who are chronically infected.

Not exact matches

In the 30 years since scientists identified HIV as the cause of AIDS, the virus has proved unbeatable — hiding in the very immune cells that would kill it; reflexively and rapidly mutating; mysteriously persisting in the gut, kidneys, liver, and brain; subverting every vaccine (the best one so far has given only 30 percent protection); and roaring back to life almost the moment drugs are stopped.

Fundamental questions persist about where the virus hides in the body and which immune responses most effectively can foil it — and answers may lead to the still elusive HIV vaccine and cure.