As coronavirus spreads across the globe, a crucial question has emerged: After recovering from an infection, are people immune? This question is important for understanding who can safely go back to work, as well as for understanding how long the worst impacts of the pandemic are likely to last. Because the virus is so new, the answer isn't fully understood. But so far, scientists say, it looks like SARS-CoV-2 probably induces immunity like other coronaviruses. That means that the human body will probably retain a memory of the virus for at least a few years and should be protected from reinfection, at least in the short-term.