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The aim is to make the mosquitoes that have been exposed to radiation the dominant type, to curb the spread of dengue, she added.
The north-western provinces of Salta, Tucumán and Jujuy, near Argentina’s borders with Chile and Bolivia, have recorded the highest numbers of deaths.
Dengue symptoms include fever, headaches, nausea and aching joints.
The health ministry has urged people to step up anti-mosquito measures, including mosquito netting on doorways and windows, use of insect repellent and removal of any water containers that may act as breeding grounds.
Source: bbc.com