London: Medical experts warn that if global temperatures continue to rise, the number of people infected with dengue and malaria in the world will reach 8.4 billion every year by the beginning of the next century.
The study was conducted by the London School of Hygiene and Tropical Medicine in the United Kingdom and involved experts from Sweden and Italy.
Mosquitoes spread many diseases, but malaria and dengue are the most worrying. According to the World Health Organization, an estimated 229 million people worldwide were infected with malaria in 2019, while 92 million people were infected with dengue.
The study analyzed data on global temperatures and mosquito-borne diseases over the past 20 years.
The analysis found that the global number of people infected with malaria fell from 262 million to 214 million during this period (in 2015), but then increased again to 229 million by 2019.
Dengue is even more dangerous because in 2000 the disease affected just over 500,000 people worldwide, but by 2019 the number had risen to 5.2 million. In other words, the global spread of dengue has increased 20 times in twenty years.
Identifying the reasons for the increase, experts say the average global temperature has been rising steadily for the past two decades, which is beneficial for mosquito breeding. As a result, the breeding season for mosquitoes has also increased by a month and a half.
Experts say that if the rise in temperature is not controlled and rises to 3.7 degrees Celsius by 2100, it will not only increase the number of mosquitoes but also the number of mosquito-borne diseases worldwide. The number of people could be around 8.4 billion (because by one estimate, the world’s population will have reached 16 billion by 2100).
The study, published in the latest issue of the online research journal The Lancet Planetary Health, found that countries on the world map that are located northward and that today are prone to malaria and malaria due to their relatively cold weather. Dengue is largely safe, and by the beginning of the 22nd century, the epidemic situation in these countries will be alarming. These areas include North America, North Central Europe and North Asia.
It should be noted that there has already been a significant increase in the number of mosquitoes in high altitude, cold places, which further strengthens this fear.
The study emphasizes that serious, urgent and effective efforts are needed to control global warming. Otherwise it will be too late and we may face global epidemics like dengue and malaria along with other environmental issues.