The Last Remaining

In a post-apocalyptic world there are only a few remaining cults of humans left. Most of the human race was wiped out by a virus. Now that the virus is finally gone, only 1,6% of the human race is left alive. People are building shelters all over the world, though it’s hard to get into one. You have to go through tests to make sure that no one brings back the virus. Can you get past those tests?