"Immunology" . "Human anatomy by organ" . "Lung" . "Atypical pneumonias" . "Bird diseases" . "Cytokines" . "Bat virome" . "Viral respiratory tract infections" . "Severe acute respiratory syndrome" . "Inflammations" . "Immune system" . "Syndromes affecting the respiratory system" . "X-ray computed tomography" . "Sarbecovirus" . "Zoonotic bacterial diseases" . "Respiratory system imaging" .