In these cases, the transition from the solid to the gaseous state requires an intermediate liquid state. The pressure referred to is the partial pressure of the substance, not the total (e.g. atmospheric) pressure of the entire system.
Botulism is a rare but serious paralytic disease caused by a bacterial toxin usually produced by the bacterium Clostridium botulinum. There are four generally recognized naturally-occurring types; foodborne, wound, infant, and, rarely, adult intestinal colonization. Iatrogenic and inhalational botulism may also occur.
Botulism is caused by a nerve toxin that is produced by a bacterium called Clostridium botulinum. A toxin is a poison that is created by living organisms (plants, animals and certain bacteria). The bacteria are found naturally in the soil.