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\title{PLOS Science Wednesday: Hi Reddit, we're Nick and Cori Ruktanonchai, and
we published a paper in PLOS Computational Biology on how mobile phone
data can target malaria elimination efforts -- Ask Us Anything!}



\author[1]{PLOSScienceWednesday }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 24, 2026}


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\begin{abstract}
Hi Reddit! I'm Nick Warren Ruktanonchai, a postdoctoral research fellow
at the University of Southampton. I'm interested in understanding how
people move, which helps us predict when, where, and why some people
become exposed to areas with infectious diseases. And I am Cori Warren
Ruktanonchai, a PhD student in Geography \& Environment at the
University of Southampton--as you may have noticed by the names, I also
happen to be Nick's wife! I'm interested in using spatial statistics to
better locate pregnant women, mothers and newborns at risk of adverse
health outcomes. We recently published an article titled ``Identifying
Malaria Transmission Foci for Elimination Using Human Mobility Data'' in
PLOS Computational Biology, mapping where people got malaria based on
their travel patterns. We combined data from 1.19 million mobile phones
in Namibia with a map of malaria prevalence to predict areas where the
most people get infected. We hope that by targeting these hotspots,
elimination efforts can both send help where it's most needed and reduce
transmission nationwide. Call and text locations from mobile phones are
a great tool for knowing where people have been. At Flowminder, we've
used mobile phone data to not only help governments and NGOs predict the
spread of disease, we've also used it to understand how people move
after catastrophes, including a PLOS Medicine paper on the 2010 Haiti
earthquake and a PLOS Currents paper on the 2015 Nepal earthquake. We'll
be answering your questions at 1pm ET -- Ask Us Anything! Don't forget
to follow Nick on Twitter at @nruktanonchai and Cori at @cwruktanonchai.
Also, the Flowminder Foundation can be found at @flowminder, and the
WorldPop Project at @WorldPopProject!%
\end{abstract}%



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