Rain or shine, deadly mosquitoes are on the move
Hotter temperatures and heavy rainfall coupled with climate change are perfect breeding grounds for the Aedes mosquito that spreads Dengue Fever.
While many people enjoy warmer temperatures, basking in the sun, so do the Aedes mosquitoes which spread dengue fever. He well developed at temperatures ranging from 20 to 30 degrees Celsius. Higher temperatures mean increased rates of female Aedes mosquito bites, increasing the risk of disease transmission. The same higher temperatures accelerate the spread of mosquito-borne viruses.
Both the increase in temperature and precipitation stemming from climate change will develop geographic distribution of dengue fever — increased temperatures shorten the mosquito breeding life cycle, and more rainfall provides mosquitoes with more places to breed and the humidity they need to thrive. Researchers in Malaysia now home mosquito trap trial to help solve the problem after other methods such as spraying become less effective. The traps are filled with environmentally friendly pesticides that reduce fertility. The female mosquito then spreads the pesticide and her offspring are reduced. This is a solution that has proven effective in Brazil.
The traps are made of inexpensive polyethylene and operate without additional electricity or extensions. The design is based on a gravity watering system that effectively dispenses trapping solutions for up to two months. With further refinements, scientists anticipate the system will reduce the Aedes population and indirectly reduce the transmission of dengue fever.
DHF has affected half the world’s population, but how climate change will affect its distribution depends on many factors. One recent research predicts that there will be no significant spread of dengue fever in Europe over the next few decades. Although the prediction of rising temperatures would be suitable for Aedes mosquitoes, the projected decreases in rainfall and relative humidity do not support an increase in the Aedes population.
In fact, the number of people at risk of DHF is 6.1 billion in 2080. This is probably due to the rapid population growth in areas that are already endemic for DHF, which will certainly increase the burden of public health services in these areas.
Changes in landscape, urbanization, movement and movement of people, travel and trade are important factors that need to be considered in dengue fever prevention and control programs. The interaction between climate variables, socio-economic factors and public health is very complex and dynamic.
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Poor environmental sanitation, unplanned urbanization, unsatisfactory solid waste management, limited availability of clean water all increase the risk of dengue outbreaks. International travel and trade are also the main drivers of the geographic expansion of dengue.
The Malaysian Ministry of Health has moved to strengthen dengue surveillance, rapid response to outbreaks and support dengue research for innovation and community mobilization.
It also improves communication with other stakeholders for example with local councils, solid waste management and construction site management teams as the site is known to be an attractive breeding ground for mosquitoes.
Key factors for the success and sustainability of dengue transmission control include better and effective surveillance systems, effective vector control with strong coordination among all stakeholders, increased awareness of dengue fever, especially among policy makers and local communities, and development of early warning accurate, timely and efficient. system.
New tools and strategies are needed to combat unexpected enemies.
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Rozita Hod is a professor at Universiti Kebangsaan Malaysia (UKM), specializing in public health, environmental epidemiology, and the health impacts of climate change.
The author declares no conflict of interest.
This article has been republished for World Zoonoses Day. It first appeared on us Changing climate, changing disease packaging.
Originally published under Creative Commons by 360 info™.
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