Monday , September 26 2022

The urban area is behind the rise of dengue fever



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DBobbi Reiner, one of the authors of the study and assistant professor at the University of Washington, said the cause of an increase in the disease was due to the widespread transition from rural to urban life. Those who live in bad conditions in world "unplanned megacities" are especially vulnerable.

"Dengue is a disease that is transmitted to mosquitoes. There is an increasing population of people living in poor urban areas where there are no windows on the windows, no air conditioners and there are plenty of standing water." These are the ideal conditions for mosquitoes, "he said.

Dr. Reiner said there has been little proven intervention in the fight against this disease – the only dengue vaccine is imperfect and there is little research on control measures, such as insecticides.

"Lack of evidence about what to do," he said.

There are four different dengue serotypes – or soybeans – and a person who is infected with one serotype is more likely to develop a serious form of illness if they are again infected with a different one.

Dr Rachel Love, assistant professor at the London School of Hygiene and Tropical Medicine, who did not participate in the study, said that people are moving around the world in large numbers, hence increasing the chances of being exposed to different serotypes.

She added: "Frequent interaction between different serotypes can lead to more people developing in difficult dengue, which in some cases can be fatal.

"When you have such urban areas, where there is poor hygiene and close contact between the vector and man, the number of cases must increase."

Dengue mosquitoes bite during the day, so efforts to control malaria such as bed nets are not working, she added.

"It's extremely difficult to control a vector and, when it's established, it's very difficult to eliminate. Things like improved sanitation and infrastructure are the key to having people having the right water so they do not rely on temporary water storage containers," said Dr. Love .

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