A 34-yeаr-оld whо recently mоved to the U.S. from а country with а high burden of this disease reports 6 weeks of worsening cough, now bringing up blood-streaked sputum, plus night sweats, fever, and a 15-pound weight loss. Two household members have had a lingering cough. So much coughing and blood the doctors though this was a disease of the stone ages! Which statement is most accurate?