Mumps
Mumps is considered most contagious in the five days after the onset of symptoms, and isolation is recommended during this period. In someone who has been admitted to the hospital, standard and droplet precautions are needed. People who work in healthcare cannot work for five days.
Limax maximus
A meningitis-causing nematode, "Angiostrongylus cantonensis", which normally infests the lungs of rats, has a larval stage which can only live in molluscs, including slugs. This nematode was once known to be a problem only in tropical areas, but it has since spread to other regions. Live slugs that are accidentally eaten with improperly cleaned vegetables, such as lettuce, or slugs which have been improperly cooked, can act as vectors for the parasite.