Infusion

An infusion is a COB without a class number - it is basically just a script with a string of chemicals to be injected into the selected creature's bloodstream. Some uses of this kind of COB are to make fertility or infertility infusions, or to increase the amount of ageing (such as in the Youth Extension Infusion), or to give a boost of glycogen or antibodies to save a sickly creature. If you're feeling evil, there are also Virus Injections.