"Post-primary tuberculosis is also known as reactivation tuberculosis or secondary tuberculosis. The typical upper zone predominant destructive pneumonia is due to an adaptive immune response in an immunocompetent host 1."
"Post-primary tuberculosis is also known as reactivation tuberculosis or secondary tuberculosis. The typical upper zone predominant destructive pneumonia is due to an adaptive immune response in an immunocompetent host 1."
"The location is puzzlingly different from that of primary TB. TB DNA has been isolated from bone marrow, and it seems possible that bacteria remain dormant in the hypoxic environment of bone marrow mesenchymal cells. These may migrate to the lungs under certain circumstances such as respiratory infection. When the TB bacteria are in an oxygen-rich environment they proliferate."
"The location is puzzlingly different from that of primary TB. TB DNA has been isolated from bone marrow, and it seems possible that bacteria remain dormant in the hypoxic environment of bone marrow mesenchymal cells. These may migrate to the lungs under certain circumstances such as respiratory infection. When the TB bacteria are in an oxygen-rich environment they proliferate."
"The location is puzzlingly different from that of primary TB. TB DNA has been isolated from bone marrow, and it seems possible that bacteria remain dormant in the hypoxic environment of bone marrow mesenchymal cells. These may migrate to the lungs under certain circumstances such as respiratory infection. When the TB bacteria are in an oxygen-rich environment they proliferate."
"The immunocompetent host has adaptive immunity from prior infection and the strong immune response results in destructive lung disease with cavitation. Tubercle bacilli proliferate in the cavities which communicate with the bronchial tree thereby facilitating endobronchial spread in the host and droplet spread to close contacts. Anti-tuberculous drugs do not enter the avascular cavities and treatment must be consistent and prolonged to effect cure. Without humans, there would be almost no transmission of TB 6,7."
"progressive primary TB in adolescents and adults with robust immune responses"
Expected headings
"Parenchymal disease"
"Airway disease"
"Pleural disease"
"Chest wall involvement"