Database Reference
In-Depth Information
1: DYING D
1:
40000
1:
1
20000
1
1
1
0
1:
0.00
75.00
150.00
225.00
300.00
Years
Fig. 6.3
1: EGGS
2: NYMPHS
3: ADULTS
4: INF VEC
1:
9.415e+09
2:
3:
4:
1:
2:
4.7075e+09
3:
4:
2
4
3
3
4
4
4
3
3
1:
2
2:
1
3:
2
1
4:
0
1
2
1
0.00
75.00
150.00
225.00
300.00
Years
Fig. 6.4
infection rate and thus, decreases the number of deaths due to Chagas disease.
Chagas disease cannot be eliminated solely by housing improvements, however.
The outflows from ADULT INSECT and INFECTED VECTOR were added to
test the effect of annual insecticide spraying. Annual spraying was known to kill
93% of bugs in domiciliary areas.
12
The effect of annual spraying, together with
improved housing, is displayed in Figures 6.7 and 6.8. The results show that regular
insecticide use can eliminate the triatomine bugs from human housing as long as
these bugs do not have the ability to develop resistance to insecticide.
Chickens and dogs are the two major blood sources besides humans. To see the
effects of chickens and dogs on the spread of the disease, we decreased the number
