The genome of the organism that produces the world's most lethal toxin has been revealed. This toxin is the major weapon in the genome of Clostridium botulinum: less than two kg is enough to kill every person on the planet.
pneumothorax. entry of air into the pleural cavity in sufficient quantity to cause collapse of the lung and consequent respiratory embarrassment. If it is unilateral there is a mediastinal shift with displacement of the heart to the other side of the chest. Breath sounds are absent from the affected side. Pneumothorax.
Regardless of what causes the hole in the lung, the hole allows air to leak out of the lung. Because the air is inside the body, it has no where to go. The air takes up space that the lung usually needs and the lung collapse. To get the lung to re-inflate, doctors need to put a tube through the ribs into the chest. This is called a chest tube.