*Corresponding Author: Chandra Wickramasinghe N, Buckingham Centre for Astrobiology, University of Buckingham, UK
Received: Dec 25, 2018; Accepted: Jan 19, 2019; Published: Jan 23, 2019
Citation: Qu J (2019) Weakened Magnetic Field and the Resurgence of Mosquito-Borne Arboviruses. Infect Dis Immunity 2: 1-2.
Copyright: ©2019 Qu J. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Five epidemics of mosquito-borne arboviruses- Zika virus (ZIKV), Dengue virus (DENV), Yellow Fevervirus (YFV), West Nile virus (WNV) and Chikungunya virus (CHIKV) have emerged in the Western Hemisphere, particularly in South America since late 2013. The reason we are seeing such a sudden, sharp rise in these mosquito-borne arboviruses is unknown. Although climate change, mass human migrations and poor hygiene are often cited as primary causes for the sudden resurgence, it is likely that a more fundamental cause exists, and its discovery could have a profound effect in determining future public health strategy .
In June 2014, after just six months collecting data, ESA’s Swarm programme confirmed the general trend of the magnetic field’s weakening, with the most dramatic declines over the Western Hemisphere; but in other areas, such as the southern Indian Ocean, the magnetic field had strengthened since January (Figure 1).
Figure 1: Changes in Earth’s magnetic field from January to June 2014 as measured by the Swarm constellation of satellites. Shades of red represent areas of strengthening, while blues show areas of weakening over the 6-month period.
Previous studies have suggested that the mosquito is an insect sensitive to the magnetic field, and the weakening of the magnetic field may have increased the mosquito's reproductive speed and spatial density . The currently emerging arbovirus epidemics in the past four years are mostly transmitted to humans by bites from mosquitos vectors. The rapid weakening of Earth's magnetic field in the Western Hemisphere probably speeded up an increase in the population of mosquitoes thus promoting the rapid spread of these mosquito-borne arboviruses.
Thus, we make the bold suggestion that a surveillance of magnetic field may serve as a potential warning of future mosquito-borne arboviruses. Together with other epidemiological data such information might prove to be a useful factor for strategic disease control planning of mosquito-borne arboviruses.
Data on the number of Earth’s magnetic field were provided by European Space Agency (ESA)
These authors contributed equally to this work.
The authors have declared that no competing interests exist.