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.
Pneumothorax. A pneumothorax is a rupture of the air sacs, or alveoli, in the lung. As the baby breathes air into the lungs, some of that air goes through the rupture and into what is called the pleural space or cavity that surrounds the lung.The air that enters this cavity puts pressure on the lung from the outside, squeezing and squashing the underlying lung, making breathing more difficult.s the baby breathes air into the lungs, some of that air goes through the rupture and into what is called the pleural space or cavity that surrounds the lung. The air that enters this cavity puts pressure on the lung from the outside, squeezing and squashing the underlying lung, making breathing more difficult.