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The Indian capital New Delhi has recorded more than 1,800 cases of dengue in the past week, bringing the total of contaminations to 7,128 this season, according to health authorities.
This is the highest number of infections reported in the city since 2015, when dengue fever infected nearly 16,000 people and killed 60.
Experts say the surge in dengue cases is attributed to lack of sanitation and hygiene, with the most affected areas located near unclear water bodies and places affected by waterlogging.
The number of cases is high this year, also due to the government notification requiring all hospitals, care homes, clinics and diagnostic centers to report cases of dengue, malaria and chikungunya.
The Aedes aegypti mosquito is considered the main vector of dengue fever and its eggs hatch on contact with water.
The World Health Organization (WHO) warns that the virus’s death rate could exceed 20% without proper medical care.
The disease has become a global problem in recent decades, with between 100 and 400 million infections recorded each year, mostly in Asia and South America, according to the WHO.