Health ministry advisory urges rational use of cough syrups in children after 11 deaths in Madhya Pradesh and Rajasthan.
Those infected with the virus may have mild fever, skin rashes, conjunctivitis, muscle and joint pain or headache.
B K Tyagi, director of the Madurai-based Centre for Research in Medical Entomology, talks with Rediff.com's Shobha Warrier about how dengue fever can be controlled.
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