Transcript Upping our game to reduce malaria around reservoirs

Upping our game to reduce malaria around
reservoirs
Jonathan Lautze
Solomon Kibret
Matthew McCartney
Luxon Nhamo
International Water Management Institute
ARM – IWMI HQ
November 2016
What did we do?
What is the issue?: Identifying and
reducing malaria impacts of dams
in Africa
• Determined current malaria
impact of dams in Africa
• Determined future malaria impact
of dams in Africa
• Explored potential for reservoir
management to contribute to
malaria control
Dams: malaria impacts
• >1.1 million cases/year due to large dams
>900 000 in unstable areas
>200 000 in stable areas
• 2.4-3 million cases/year due to
large dams by the 2080s
• 0.8-1.7 million case in crease in unstable areas
• 4-500 000 case increase in stable areas
These figures result from only about 60 % of
large dams – the ones that are georeferenced
Reservoir management: additional tool to control malaria?
• Preliminary relationship between drawdown rate, larval
abundance, adult Anopheles mosquitoes and malaria
transition around Koka
– Faster drawdown has positive results (0.5 m/month)
• Explored impacts of
targeted implementation
of this on other dam
objectives
– Minimal impacts on
hydro production that
can be offset if part of a
broader system
Uptake/Outcomes
Happened
• Widespread media interest, profile raised
• Substantial interest in publications
Targeted
• We would like to see change in the way dams
are planned (EIAs) and managed
• More work needed before we get to this point
So what?
• Dams are a major contributor to malaria
> 1million cases/year now
2-3 million cases/year by end
of century
• Current control efforts are
insufficient
• Impacts not uniform
• Potential additional tool
sitting on the shelf
What next?
• Improve prediction based on
- degree of transmission stability
- slope
- socioeconomics
• Identify potential for environmental
controls to supplement existing
efforts
• Package into a tool that can be
used
Who benefits? Who funds?
Benefits
• Communities around dams – potential reduced
transmission
• Health authorities – more efficient resource allocation
• Water managers – awareness on health risks and
opportunities to mitigate
Potential Funders
• US EPA, USAID, NIH
• Possibly Gates, WHO
Why should IWMI focus on this?
• Our expertise in this area is fairly strong,
network growing
• Risks to health are part of water security
• Dam-building to continue, possibly accelerate in
Africa
• Seems to be a major externality of WRD
• Opportunity to do things better
THANK YOU