Currently, the Zika outbreack makes people all over the world worry. Zika virus disease soon appeared after the Ebola, now, is global concern. Many organizations, scientists and experts do their best to find the vaccine or the way to prevent it.
Zika virus is an emerging mosquito-borne virus that was first identified in Uganda in 1947 in rhesus monkeys through a monitoring network of sylvatic yellow fever. It was subsequently identified in humans in 1952 in Uganda and the United Republic of Tanzania. Outbreaks of Zika virus disease have been recorded in Africa, the Americas, Asia and the Pacific.
The incubation period (the time from exposure to symptoms) of Zika virus disease is not clear, but is likely to be a few days. The symptoms are similar to other arbovirus infections such as dengue, and include fever, skin rashes, conjunctivitis, muscle and joint pain, malaise, and headache. These symptoms are usually mild and last for 2-7 days.
In the case of Zika virus, the major route of spread is mosquitoes. The Aedes species carry the virus and then can infect anyone with a simple bite. This means prevention requires control actions beyond the usual methods. Long clothing and insect repellents are good for the individual while fogging is a common practice to protect the population. Yet they may not be sufficient to stop the spread of this virus, which is now considered to be a public health emergency.
The transmission of Zika virus quite like Elbola virus – ring transmission. It means when a person infected Zika virus through female Aedes, people who contact with him are tented to infect, too. Therefore, when scientists and researchers have permission to test trial vaccine, they will implement ring vaccination strategy in clusters as the mosquitoes that transmit the disease stay within a 1,300-foot range.
Some Australian researchers (at the Pest and Environmental Adaptation Research Group located at the University of Melbourne’s Bio21 Institute in Australia) find another way to prevent Zika virus disease. One researcher said that the bacteria may represent one of the best options to control mosquitoes. "Wolbachia are promoted as a natural control method because these bacteria are already widespread in mosquito populations," she says. "They manipulate their hosts’ biology and we can use these effects to reduce mosquito numbers in several ways." And it can carrie the potential to decimate mosquito populations by reducing their rate of reproduction.
According to some estimates, the bacterium can be found in more than three-quarters of the insect species on Earth, representing one the most successful and abundant bacterial symbionts in nature. As Rasic explains, the bacterium also can be used as a pathogen thanks to its specialized mechanism to control mosquito reproduction.
Sound likes interesting because people have found two ways, at least, against virus disease.