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.
When these blebs rupture or âpopâ inhaled air is able to travel from the airways to the thoracic cavity, creating a pneumothorax or lung collapse. The symptoms of a pneumothorax depend on the amount of lung collapse and the baseline respiratory status of the patient.