AFP Sep 11, 2019
Nasa is developing a new technique to forecast malaria outbreaks in Myanmar from space, as the emergence of new drug-resistant strains in South-east Asia threatens efforts to wipe out the deadly disease globally.
The goal of worldwide malaria eradication within a generation, by 2050, is "bold but attainable", a report released this week in The Lancet argued.
Malaria cases and deaths plummeted by more than 90 per cent in Myanmar between 2010 and 2017, World Health Organisation (WHO) figures show, a success largely credited to better rural health services and wider use of treated bednets.
But the country still has a higher prevalence than its neighbours in the Mekong region.
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Several drug-resistant strains are taking hold across South-east Asia and it is feared these could migrate to Africa where more than 90 per cent of cases globally occur.
To counter this threat, Nasa is deploying "cutting edge" spatial technology to tackle malaria outbreaks before they happen, scientist Tatiana Loboda told AFP.
She is applying her expertise in geo-spatial and risk modelling – coupled with a background in predicting wildfire outbreaks in the US – to identify potential hotspots so medicines and health workers can be mobilised in advance.
"A lot of people use a little spatial modelling… but not to the same depth and capabilities as we're doing here," said Ms Loboda, a professor at Maryland University.
The satellites provide meteorological data, including land surface temperatures, atmospheric water content and information about land cover, including forest, shrubland, settlements or water.
These are then combined with socio-economic data gathered by teams of researchers carrying out in-depth surveys with sample populations in the field.
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The project is only in its third year but Ms Loboda's team has already seen a high correlation between the rate of deforestation and the disease.
One unproven theory is that these areas – often dotted with logging sites, mines and plantations – are host to a disproportionate number of migrant or seasonal workers, bringing with them new strains of the parasite.
The Maryland University team is working closely with local government and military scientists, collecting data from civilians and troops respectively.
But that brings challenges in a country where the armed forces keep their operations shrouded in mystery.
"We're not allowed to ask where they go", Ms Loboda told AFP in Yangon, describing it as "like working blindfolded".
This is coupled with a lack of access to Myanmar's myriad conflict areas.
"I'm used to working with big data", Ms Loboda bemoaned.
"I want to blanket the whole country with random locations…but I can't." The project is not immune to geopolitics either.
The state of US-Myanmar relations can complicate meetings with the military in the capital Naypyidaw.
"Sometimes I can go, sometimes I can't," Ms Loboda said.
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