1 In many cases of bronchiectasis a clear-cut cause cannot be identified. 2  Some respiratory infections in childhood can damage the airways and lead to bronchiectasis. 3  These may be viral infections (such as cause some types of bronchiolitis, or measles) or bacterial infections (such as whooping cough).ence, physiotherapy is needed to help clear these secretions. Normally the airways in the lung are sterile-they are not infected. In bronchiectasis, because of the inability to clear secretions effectively, these secretions become infected.
Halo 4's multiplayer features aspects from both Halo 3's and Halo: Reach's multiplayer. Sprint is now an ability that everyone can use along with their Armor Abilities. Firefight has been replaced with Spartan Ops, and like Firefight, Spartan Ops can be played online.
The show for us this year is particularly exciting, because both modes can be played by you - the fans - live in front of us. We can't wait to see and hear what you think. By bringing Versus Multiplayer to San Diego, this will also mark the first time fans can play Gears of War 4 Versus since the Beta.