How long is acute bronchitis contagious? I'm over most symptoms except some fatigue and coughing up mucus and blood in the AM. Approx. Day 9

24 hours no fever. In general, to help avoid the spread of illness it is advisable to avoid close contact with others during the febrile phase until fever free (without medicine) for 24 hours. Now, know that viruses can be transmitted by secretions so STILL be sure to cover mouth when coughing and wash hands often!
Get examined. You are either relapsing or non-responsive to current therapy. You must be seen, examined, evaluated, diagnosed and treated.