Can mosquitoes flying high in the sky spread diseases like West Nile virus in West Africa?

Yes, a recent study found high-flying mosquitoes over Mali and Ghana carrying pathogens like West Nile virus and dengue, indicating they can spread diseases.

How do wind-borne mosquitoes contribute to the spread of diseases like dengue?

Wind-borne mosquitoes can travel long distances, transmitting pathogens to new areas far from where they were initially infected.

What is being done to combat the increasing threat of mosquito-borne diseases in places like West Africa?

Scientists are developing new vaccines, like a one-dose malaria vaccine, and more effective mosquito nets to protect populations.

Home / Science / Wind-borne mosquitoes spread deadly viruses high above Africa

Wind-borne mosquitoes spread deadly viruses high above Africa

8 Jan

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Summary

High-flying mosquitoes carrying West Nile and dengue found in West Africa.
Study shows wind-borne insects can transmit diseases far from their origin.
Warming planet increases mosquito range, raising disease risks globally.

Wind-borne mosquitoes spread deadly viruses high above Africa

High-flying mosquitoes, capable of long-distance wind-borne migration, have been found to carry dangerous pathogens, including West Nile virus and dengue. Researchers collected over a thousand female mosquitoes at altitudes of 120 to 290 meters above Mali and Ghana. Subsequent testing identified 21 distinct pathogens, confirming the potential for these insects to transmit diseases far beyond their departure points.

This discovery carries significant public health implications, particularly as global temperatures rise. Mosquito-borne illnesses like dengue, which can cause severe symptoms and even death, are becoming more prevalent due to mosquitoes expanding their territories and active seasons. The year 2024 has already been marked as the worst on record for dengue cases worldwide.