Accurate mathematical models of airborne infection are needed to estimate the risk from secondary transmission of biological warfare agents. An equation has been derived by the authors : they determined the fraction of inhaled air that has been exhaled previously by someone in the building by using a CO2 concentration as a marker for exhaled-breath exposure.
There is a critical rebreathed fraction of indoor air below which airborne propagation of common respiratory infections and influenza will not occur.
Risk of indoor airborne infection transmission estimated from carbon dioxide concentration
Year:
2003
Bibliographic info:
Indoor air, 3/2003, Vol. 13, No. 3, pp 237-245, 2 Fig., 1 Tab., 24 Ref.