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.
Malaria is caused by infection with a microbe called a protozoan, which is transferred to people though the bite of Anopheles mosquitoes. Distinct from viruses and bacteria, protozoans are single-celled eukaryotic micro-organisms. Four species of protozoan parasites cause malaria in humans â Plasmodium falciparum, P. vivax, P. ovale and P. malariae.