Dengue fever spreads in a neighborly way
Mapping the transmission of the painful disease could help target efforts to control it
DISEASE DEFENSE To control the spread of dengue in Bangkok, DDT is sprayed to kill mosquitoes, the primary insect that transmits the virus.
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Dengue is a bit of a homebody. By mapping the spread of the virus across Bangkok, scientists found that infections were most likely to occur within a few minutes’ walk of the home of the first person infected.