This study is for adults who have RSV, a virus that affects the lungs and causes breathing problems. It tests a medicine called **EDP-938**. Phase 2b means it's in the middle stage of testing in people. Randomized, double-blind, placebo-controlled means neither you nor the doctors will know if you're getting the actual medicine or a fake one (placebo) until the study ends. To join, you must be at risk for more problems from RSV, like being 65 or older or having conditions like asthma or heart failure.

Participants must have symptoms like coughing or fever, test positive for RSV, and agree to use contraception if they're of childbearing potential. You can't join if you need hospital care soon, have other infections, or certain health conditions.

• The study medicine is taken orally, so no injections are needed.
• You'll need to take part in regular study visits, but you can stay at home.
• The study may have risks or side effects, which will be explained to you.