CC ¼ 0.000002 * (1 À 1 * IMMUNE/(IMMUNE+NON_IMMUMNE)) {+SINWAVE
(0.0000005,52 ) }
NAT_DEATH_RATE ¼ GRAPH(POPULATION)
(0.00, 0.0108), (208333, 0.0108), (416667, 0.0111), (625000, 0.0135), (833333,
0.0168), (1e+06, 0.0207), (1.2e+06, 0.0258), (1.5e+06, 0.0321), (1.7e+06,
0.0363), (1.9e+06, 0.0387), (2.1e+06, 0.0411), (2.3e+06, 0.0423), (2.5e+06,
0.0426)
VAC_FRACTION ¼ 0.03
POPULATION ¼ CONTAGIOUS + IMMUNE + NON_IMMUMNE + SICK
References
1. Preston R (1995) The hot zone. Anchor Books, New York
2. Edelstein-Keshet L (1988) Mathematical models in biology. Random House, New York
3. Finger R, Hughes J, Meade BJ, Pelletier AR, Palmer CT (1994) Age-specific incidence of
chickenpox. Public Health Rep 109(6):750–755
4. May RM (1983) Parasitic infections as regulator of animal populations. Am Sci 71(1):36–45
5. Hethcote HW (1976) Qualitative analyses of communicable disease models. Math Biosci 28
(3–4):335–356
180
21 Infectious Diseases
(0.0000005,52 ) }
NAT_DEATH_RATE ¼ GRAPH(POPULATION)
(0.00, 0.0108), (208333, 0.0108), (416667, 0.0111), (625000, 0.0135), (833333,
0.0168), (1e+06, 0.0207), (1.2e+06, 0.0258), (1.5e+06, 0.0321), (1.7e+06,
0.0363), (1.9e+06, 0.0387), (2.1e+06, 0.0411), (2.3e+06, 0.0423), (2.5e+06,
0.0426)
VAC_FRACTION ¼ 0.03
POPULATION ¼ CONTAGIOUS + IMMUNE + NON_IMMUMNE + SICK
References
1. Preston R (1995) The hot zone. Anchor Books, New York
2. Edelstein-Keshet L (1988) Mathematical models in biology. Random House, New York
3. Finger R, Hughes J, Meade BJ, Pelletier AR, Palmer CT (1994) Age-specific incidence of
chickenpox. Public Health Rep 109(6):750–755
4. May RM (1983) Parasitic infections as regulator of animal populations. Am Sci 71(1):36–45
5. Hethcote HW (1976) Qualitative analyses of communicable disease models. Math Biosci 28
(3–4):335–356
180
21 Infectious Diseases