Every 2-4 days during treatment you will have blood collected (around 2 teaspoons) for routine tests. On Days 3 and 7 of treatment (+/- 2 days), you will have a repeat throat and nose washings/swabs. The washings and swabs will then be repeated once a week for 2 weeks, or until 2 consecutive cultures are negative, if that occurs sooner. If your doctor feels it is necessary, you may have a repeat chest x-ray.