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.
Tension pneumothorax: The most serious type of pneumothorax, this occurs when the pressure in the pleural space is greater than the atmospheric pressure, either because air becomes trapped in the pleural space or because the entering air is from a positive-pressure mechanical ventilator.
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.