Bronchiectasis are irreversible, local extension of bronchi, usually accompanied by infection. In about 50% of cases its origin remains unknown. Cystic fibrosis is an inherited chronic disease caused by defective gene and it affects mostly the lungs and digestive system. Chlamydophila pneumoniae is a bacteria transmitted through droplets which can cause atypical pneumonia. Globally, 9.2 million new cases occurred in 2006, of which 7% million cases were in HIV-positive people. The Stop TB Strategy is WHO’s recommended approach to reducing the morbidity and mortality. DOTS goal is to dramatically reduce the global burden of tuberculosis by 2015 by ensuring all TB patients, including those co-infected with HIV and those with drug-resistant TB, benefit from universal access to high-quality diagnosis and patient-centered treatment. We investigated a 27 years old woman with underdiagnosed bronchial asthma who was admitted to hospital due to recurrent episodes of shortness of breath. She was treated with antibiotics and steroids but in spite of this her state worsened and chest radiograms showed progression of the illness. She was diagnosed for cystic fibrosis, chlamydial pneumonia and idiopathic bronchiectasis. Finally, the microbiological detection of acid-fast bacilli (AFB) using The BACTEC radiometric method allowed for TB diagnosis which was later on confirmed by positive cultures for M. tuberculosis. The patient was treated for six months and we noted clinical and radiological improvement of her health.