Urban Growth in Asian Cities. 1950-19691970-19791980-2011 Spread of dengue hemorrhagic fever in...
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Transcript of Urban Growth in Asian Cities. 1950-19691970-19791980-2011 Spread of dengue hemorrhagic fever in...
![Page 1: Urban Growth in Asian Cities. 1950-19691970-19791980-2011 Spread of dengue hemorrhagic fever in Asia.](https://reader036.fdocuments.us/reader036/viewer/2022062511/551a8e1955034643688b5c22/html5/thumbnails/1.jpg)
Dhaka
HCMC
Manila
Jakarta
Bangkok
0 2 4 6 8 10 12 14 16 18
1950
1980
2010
Urban Growth in Asian Cities
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1950-1969 1970-1979 1980-2011
Spread of dengue hemorrhagic fever in Asia
![Page 3: Urban Growth in Asian Cities. 1950-19691970-19791980-2011 Spread of dengue hemorrhagic fever in Asia.](https://reader036.fdocuments.us/reader036/viewer/2022062511/551a8e1955034643688b5c22/html5/thumbnails/3.jpg)
The spread of dengue hemorrhagic fever in the Americas
Adapted from Gubler, 1998
Prior to 1981 1981-2011
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1955-1959
1960-1969
1970-1979
1980-1989
1990-1999
2000-2009
0
200000
400000
600000
800000
1000000
1200000
The changing epidemiology of dengue
Source: DengueNet
No
of C
ases
• Expanding geographic distribution
• Increased epidemic activity
• Hyperendemicity
• Emergence of severe disease
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New dengue Disease Burden estimates
3.6 billion
230 million
34 million?
2 million
21,000
Beatty ME, Letson GW, Margolis HS., Phuket, Thailand October 17-19, 2008.
At-Risk Population
Infections
Dengue Fever
DHF
DSS
Deaths
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Why have we seen such a dramatic increase in epidemic Dengue Hemorrhagic Fever?
• Demographic Changes (Pop Growth)• Environmental Change
- Urbanization- Changing lifestyles• Modern Transportation (Globalization)• Increased Movement of People, Animals,
Commodities and pathogens• Lack of Effective Mosquito Control
Major Drivers
![Page 7: Urban Growth in Asian Cities. 1950-19691970-19791980-2011 Spread of dengue hemorrhagic fever in Asia.](https://reader036.fdocuments.us/reader036/viewer/2022062511/551a8e1955034643688b5c22/html5/thumbnails/7.jpg)
Urban growth in Asian and American Cities, 1950-2010
Mean population of Dhaka, Bangkok, Jakarta, Manila and Saigon.Mean population of Rio de Janeiro, Sao Paulo, San Juan, Caracas and Guayaquil.
1950 1980 20100
2
4
6
8
10
12
14
Popu
latio
n (M
illio
ns)
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The global air network
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Average annual number of global airline passengers by decade, 1950-2010
1950-1960
1970-1980
1980-1990
1990-2000
2000-2009
0200400600800
100012001400160018002000
IATA 2010
Mill
ion
of P
asse
nger
(Mil)
Period
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Commercial Air Traffic Over a 24 Hour Period
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DEN 1DEN 2
DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2
Global distribution of dengue virus serotypes, 1970
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Global distribution of dengue virus serotypes, 1970-2000
1971
1975
1981
DENV – 1; DENV – 2; DENV – 3; DENV – 4
1985
1981
1994
1982
1980
1977
1979
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DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2DEN 3
DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2DEN 3 DEN 4
DEN 1DEN 2DEN 3 DEN 4
Global distribution of dengue virus serotypes, 2011