Use of a mathematical model to estimate tuberculosis transmission risk in an Internet café

Table 1 Variables used to estimate the quantum generation rate

Variable	Value
Volume of shared airspace (V) (m³)	205^a
Total exposure time (t) (h)	10
Breathing rate (p) (m³/h)	0.3^b
Number of infectious people (I)	1
Outdoor air supply rate (Q) (m³/h)	4,100

Q is calculated from an air-exchange rate of 20 per hour and the volume of shared airspace V
^aThere were 136 people (N) in the ventilated airspace
^bFrom Ref. [10]

ISSN: 1347-4715