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Christian Response to Malaria
Adam Wolkon, Malaria Branch, CDC: AWolkon@cdc.gov
Global Missions Health Conference, November 7, 2003
  • All of the yellow countries have at least some areas with endemic malaria transmission.
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What is Malaria?
  • Parasitic infection of human red blood cells
  • 4 species can infect humans
    • Plasmodium falciparum
    • Plasmodium vivax
    • Plasmodium malariae
    • Plasmodium ovale
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Plasmodium falciparum
  • Most dangerous form of malaria
    • Risk of cerebral malaria, renal failure, acute respiratory distress syndrome, severe anemia
  • Prompt treatment is essential
  • Untreated infection in a non-immune person would likely be fatal
  • Once person is treated and cured, there is no risk of relapse (but you can get infected again…)
    • P. falciparum has no dormant liver stage (hypnozoite)
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P. vivax and P. ovale
  • Less likely to be life threatening than P. falciparum
  • Symptoms (especially fever) can still be dramatic
  • Different drugs are used to treat blood and liver stage parasites
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Symptoms of Malaria
  • Fever is by far the most common symptom, but is by no means the only one


  • Often can have constellation of symptoms described as “flu-like”


  • Other symptoms can include: chills, fatigue, weakness, headache, nausea, vomiting, diarrhea, muscle aches, mental status changes
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What is the Malaria Vector?
  • Spread by bite of infected female Anopheles mosquitoes


  • Night-biting mosquitoes


  • Indoor-biting mosquitoes
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Malaria Lifecycle
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Malaria Mortality
  • 2 main ways it kills:
  • Anemia
    • Parasites destroy red blood cells
    • Associated  with increased mortality
  • Cerebral malaria
    • Damages brain and other vital organs
    • Fatality rate of 15% or more
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What’s the Bad News?
  • 1 million deaths per year


  • Most deaths in African children
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What’s the Good News? (part 1)
  • Every one of these deaths is preventable!!!
  • No stigma associated with malaria
  • No morality debates
  • No “Save the Mosquito” groups
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Roll Back Malaria (RBM)
  • Founded by:
  •    World Health Organization (WHO),
  •    United Nations Development Program (UNDP),
  •    United Nations Children's Fund (UNICEF)
  •    and World Bank
  • Includes national governments, civil society and non-governmental organizations, etc.
  • Provides framework for coordination between Ministries of Health and various organizations
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Roll Back Malaria (RBM)
  • The goal of Roll Back Malaria, established as a health initiative by WHO and its partners in 1998, is to halve the world's malaria burden by 2010.
  • At the Africa Summit on RBM, April 2000, Heads of State or senior representatives from 44 malaria-afflicted countries in Africa agreed to a series of interim goals to be attained by 2005.
  • Global program with clear strategies
  • Provides framework for Action
  • Touts prevention and treatment
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      Roll Back Malaria (RBM)

Goals -  At least 60%
  • At least 60% of those with malaria should be able to access and use correct, affordable and appropriate treatment within 24 hours.


  • At least 60% of those at risk of malaria, particularly children under five years of age and pregnant women should use insecticide treated mosquito nets.


  • At least 60% of pregnant women at risk of malaria should have access to chemoprophylaxis or intermittent presumptive treatment.
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         Malaria Interventions

Many Partners      Many Roles
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Malaria Interventions
  • Intermittent Preventive Treatment (IPT)


  • Insecticide-Treated Bednets (ITNs)


  • Case Management (Treatment)
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ANC attendance
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Malaria During Pregnancy
  • Malaria during pregnancy in sub-Saharan Africa is estimated to account for:


    • 400,000 cases severe anemia in pregnant women
    • ~ 35% preventable low birth weight
    • ~ 5% infant mortality
    •    (est. 75,000 - 200,000 infant deaths annually)
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Malaria During Pregnancy:

Opportunities for prevention in areas
with high malaria transmission
  • Drugs
    • Intermittent preventive treatment (IPT)
    • Chemoprophylaxis (no longer recommended)


  • Insecticide Treated Nets (ITNs)
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Malaria During Pregnancy:
Chemoprophylaxis
  • Most regimens require weekly or more frequent dosing
    • Chloroquine most commonly used drug


  • Usefulness severely limited by:
    • Difficulty in delivering intervention
    • Poor adherence to regimen
    • Side effects of chloroquine (especially itching)
    • Rising levels of P. falciparum resistance to chloroquine
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Malaria During Pregnancy: Intermittent Preventive Treatment
  •    Most commonly adopted regimen: two treatment doses of sulfadoxine-pyrimethamine (SP) (3 tablets/treatment): one second trimester, one third trimester
    • Very inexpensive (< 20 cents per treatment)
    • Therapy easily delivered and may be directly observed (avoids issues of adherence to regimen)
    • Generally well-tolerated with few side effects
    • Trials demonstrating efficacy have been conducted in Malawi, Kenya (2 studies), and Mali (not yet published)
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Intermittent Preventive Treatment: Summary
  •    World Health Organization recommends that in areas with high malaria transmission:
    • Currently, the best available drug for IPT is sulfadoxine-pyrimethamine (SP or Fansidar)
    • Women receive at least 2 doses of IPT after quickening (i.e.after the first trimester)
    • Doses should be at least one month apart
    • More than 2 doses is likely beneficial and not harmful
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Insecticide Treated Bednets (ITNs)
Why ITNs?
  • Mosquito nets or bednets have been used for a long time for personal protection
  • High household coverage of insecticide treated nets also reduces vector populations (‘community effect’)
  • Personal and community level effects work best at high coverage.
  • ITN use will reduce all-cause infant mortality by more than 20%
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Insecticide Treated Bednets (ITNs)
  • Coverage counts!!!!
  • Insecticide is extremely important
  • Different shapes and sizes – rectangular, conical
  • Different Materials – cotton, nylon, polyester, polyethylene
  • Different Types – conventional, long lasting/long duration
  • Different Pyrethroid Insecticides - Permethrin (Peripel), Deltamethrin (KO Tabs), Alphacypermethrin (Fendona)
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Use of Nets
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PC USA in Malawi
  • Central Church of Africa, Presbyterian (CCAP)
    • Presbyterian Church USA (PC USA) and the Reformed Church in America (RCA) collaborating with CCAP
    • Christian Women’s NetWorkers Program (CWNP) activities in 2 Synods
  • Synod of Livingstonia
    • 1.2 million people
    • Malaria is leading cause of morbidity and mortality
    • Infant Mortality Rate = 17.7% (1992 national estimate)
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Presbyterian Church in Malawi
  • Facilitating health programs since 1894


  • Major partner in Christian Hospital Association of Malawi (CHAM)


  • Began malaria prevention education and ITN activities in 1996
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PC USA and CDC in Malawi
  • 3-year collaboration
  • Technical assistance
    • meetings in Blantyre and Kampala
    • survey development
    • strengthening linkage between CCAP and National Program
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Objectives of Christian Women’s NetWorkers Program
  • 50% pregnant women under ITNs
  • 50% children <5 sleeping under ITNs
  • 60% pregnant women receive 2 doses of IPT
  • 50% ITN retreatment within 12 months


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Christian Women’s NetWorkers Program in Malawi
  • Select specific start-up congregations based on location, year-round risk of malaria


  • Selection of women within congregation (all CCAP) because women historically have been more active in church
  • (con’t . .)
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Christian Women’s NetWorkers Program in Malawi (con’t)
  • Selected women:
  • Have history with and are trusted by congregation
  • Read and write local language
  • Trained for a week in selling, dipping, recordkeeping, and adult education
  • House-to-house sales and redipping
  • ANC and <5 clinics               (con’t . .)
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Christian Women’s NetWorkers Program in Malawi (con’t)
  • Census through village leadership
  • Nets procured through PSI and US-based congregations
  • Follow Malawi government training protocol
  • Sell nets at government set rate
  • Focus on pregnant women and young children (natural fit)
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What’s Been Achieved To Date?
  • High levels of ITN retreatment – 46%
  • Increasing coverage
    • Pregnant women sleeping under ITN – 34%
    • Children <5 sleeping under ITN – 53%
  • IPT – ~80% receiving at least two doses
  • Increased community awareness


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What’s the Good News? (part 2)
  • IPT is simple and effective
  • ITNs are simple and effective
  • Both require working closely with people
  • The result is saving lives of children!!!
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