The spread or transmission of such a disease.
The spread of (initially small) shocks, which initially affect only a few financial institutions or a particular region of an economy, to other financial sectors and other countries whose economies were previously healthy.
The passing on of manners or behaviour through a closed community or household.
A recession or crisis developed in such manner.
A disease spread by contact.
A supposedly identical toxic substance obtained by cleavage of an albumose.
A toxic substance found in the venom of poisonous snakes.