Medical Definition of Mass action transmission
1.
Transmission of infection which occurs at a rate directly proportional to the number or density of both susceptibles and infecteds present.
Some authors reserve the name mass action for transmission processes of the form b X Y/N , which we associate with STD-type transmission, and describe transmission rates of the form b X Y , as pseudo-mass action ; the two are equivalent if the population size is unchanging.
(05 Dec 1998)
Lexicographical Neighbors of Mass Action Transmission
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