uganda: a study in transitions and the emergence of hiv/aids
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UGANDA: A Study in Transitions and the Emergence of HIV/AIDS. Mark Schmidt NRE 545 November 24, 1998. Outline. Why study Uganda? The HIV/AIDS Epidemic Worldwide Uganda Transitions and the Emergence of HIV/AIDS Historical/Political Urbanization/Industrialization - PowerPoint PPT PresentationTRANSCRIPT
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UGANDA: A Study in Transitions and the Emergence of HIV/AIDS
Mark SchmidtNRE 545November 24, 1998
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Outline
Why study Uganda? The HIV/AIDS Epidemic
Worldwide Uganda
Transitions and the Emergence of HIV/AIDS Historical/Political Urbanization/Industrialization Theories of HIV Emergence
Transitions and the Impact of HIV/AIDS Population Family Structure
Conclusion
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Why Study Uganda?
Origin of the HIV is thought to be the Lake Victoria region of Africa. undetected for 20-30 years brought from low endemnicity areas
into central areas
Population/environment dynamics may have caused emergence of HIV/AIDS
Historical/Political
Urbanization/Industrialization
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Epidemiology of HIV/AIDS
Recognition of a new disease United States - 1981 Retrospective Studies
Europe - 1976 Africa - late 1950’s
30.6 Million Infected at end of 1997 11 people infected per minute Sub-Saharan Africa
10% of World’s Population 2/3 of HIV/AIDS Cases
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Epidemiology of HIV/AIDS
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HIV/AIDS in Uganda Prevalence
930,000 infected individuals 9.51% prevalence rate in adults (15-49) 1,900,000 cases since beginning of epidemic 80% of cases in 15-45 age group
AIDS Mortality Burden Leading cause of adult mortality 1/2 of all mortality 1/3 of mortality from infectious diseases
Transmission 90% by heterosexual sex Vertical transmission also important
Gender Differences 1:1 Overall Male to Female Ratio Females 15-19 - 6 times more likely to be
infected Leaving large orphan population Increased vertical transmission
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HIV/AIDS in Uganda
0
20
40
60
80
15 16 17 18 19
Age
Percent of Women with First Child
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Transitions and the Emergence of HIV/AIDS
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Historical/Political Transition
Pre-Colonial Period No national boundary Diverse tribes and kingdom monarchies
Buganda most powerful Acholi and Lango
Ugandan Protectorate
1898 Treaty with Buganda
Force, threat of force, and peaceful
alliances for other tribes & kingdoms
Imperial (national) boundary established
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Historical/Political Transition
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North/South Dichotomy South in Transition
Buganda located in fertile area
People receptive to British colonialism• Agriculture was expanded; cash crop system instated
• Kampala established as commercial center
• Indians recruited to lead economic class
• Main trade routes developed
• Educational transition
North stagnant Arid land People unreceptive to British colonialism
• Agriculture was prevented• Lack of developed infrastructure• No educational transition• Recruitment of Northern tribes into military
Historical/Political Transition
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Ugandan Independence 1962-Milton Obote becomes leader
Continued British Policies 1966-Kingdoms abolished
Obote became unpopular in the South
1971-Obote overthrown by Amin - Eight Year Reign of Terror Begins
Amin expels Indians in 1972• Destroys economy and foreign confidence
• Removes commercial and industrial class
• Sends industrial, agricultural, and urbanization transitions backwards
1979-Amin overthrown in coup/war with Tanzania
Historical/Political Transition
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Migration was the direct result of British Colonialism Domestic Migration
Male Female
International Migration
Urbanization Transition
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Urbanization Transition: Domestic Male migration
Agricultural Push Land originally owned by families Families grew and resources diminished Young men left to reduce food burden on
family Labor Pull
British policies caused labor demand in South, especially in agriculture, and labor supply in North
Social Pull Young men encouraged to make money in
cities and return with wealth to villages Result: Initial one-sided bulge of men into
cities Female migration
Economic Pull Women not encouraged to migrate Due to economic necessity Most forced into commercial sex work
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Urbanization Transition: International
“Asian” recruitment British brought in Indians to run commerce Indians comprised elite sector
Result: Urbanization brought people to cities
Increased density, anonymity, and increased female sex work led to change in sexual behaviors
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Theories of HIV Emergence
The historical/political and urbanization/industrialization transitions provide a context in which hypotheses of HIV/AIDS emergence occurred.
Three Hypotheses Migrant Worker Hypothesis
“Truck-Town” Hypothesis
Military Involvement Hypothesis
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Migrant Worker Hypothesis Emergence as a result of population movement
in search of labor Urbanization created a population that amplified
HIV infection female sex workers young male professionals due to British policies & urbanization of 1950-60’s
Return migration brought HIV to villages due to economic collapse during Amin dictatorship
Study of Migration and HIV Infection (Nunn, 1995) 5.5% Prevalence among those who had not moved 8.2% - moved within a village 12.4% - moved to neighboring village 16.3% - those joining cohort
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Truck-Town Hypothesis Accounts for spread of HIV outwards from
Kampala Occurred mainly during the Amin reign in
1970’s Use of roads increased - encouraged by Amin Smuggling increased dramatically
HIV Spread outwards along principle corridors of trade/smuggling traffic
Towns developed along routes Female commercial sex work soon followed
into towns Truckers and commercial sex workers
became driving core population of HIV infection 35.2% of truck drivers infected with HIV
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Military Involvement Hypothesis Accounts for high seroprevalence in
northern tribes (Lango & Acholi) Specifically due to 1979 overthrow of Amin
Obote loyalists from these tribes recruited into Ugandan National Liberation Army (UNLA)
Fought in South used commercial sex workers
Returned to North with infection Shows positive statistical significance which
cannot be accounted for by either migrant worker or truck-town hypotheses
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Transitions and the Impact of HIV/AIDS
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Population Transition
Sub-Saharan Africa 3% increase per year 1 billion people by 2025
Uganda 20,791,000 current population 3.2% growth rate 1980-1995
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Population Transition
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Population Transition
HIV/AIDS and Mortality Direct Effect of HIV on Mortality
1.5 million additional deaths attributable to HIV by 2025
Reduction in population growth• In Rakai:
– high prevalence parishes have negative pop. growth in 1990-1995
– effects muted at district and national level• 0-4 age rage smaller than older cohorts
Indirect Effects smaller youngest age range will cause lower
birth rates as this cohort ages to reproductive age
HIV/AIDS will shift to younger age ranges
HIV/AIDS and Life Expectancy Current life expectancy is 41 5 year drop
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Population Transition
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Family Structure Transition
Traditional Family - Clan Emphasis on continuity of clan network Made up of common ancestor and common
totem under single residence Principle unit of economic productivity
need for many offspring Socialized young members
influenced behavior social welfare
Support system in times of sickness and death
orphans taken in by extended family, especially grandparents
Modern Family Nuclear/conjugal families Minimal influence on behavior Minimal support
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Family Structure Transition
Traditional/Modern Family Conflict Residence
Conjugal families cannot absorb multiple deaths
Nearby extended family unwilling/unable to help
Traditional family structure called upon Socialization
Families feel AIDS is due to a behavior; won’t help/acknowledge members in need
• stigma attached to disease Social welfare is disrupted
• Most productive members are removed• Grandparents must take care of orphans
and provide for themselves
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Family Structure Transition
Support 1.2 Millions AIDS orphans
• 38% taken by grandparents• 7% by aunts• 5% by uncles• 5% by sisters/brothers• 2% by children under 16
Family Unit still is main source of support and care for most Ugandans
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Conclusion
The Epidemiologic Transition of HIV/AIDS has had an incredible effect on Uganda. However, understanding cannot be fully realized without also analyzing the concurrent transitions that have led to the emergence of HIV as well as those that are impacted by it.