See Also: mass action transmission(medicine)
law of mass action(medicine)
mass action, law of(encyclopedia)
mass action theory(medicine)
mass-action ratio(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Action (or Office Action)(law)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Transmission(medicine)
TRANSMISSION, civ(law)

mass action transmission (medicine)


mass action transmission
<epidemiology> 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.