Was Zika outbreak caused by release of genetically modified mosquitoes in Brazil?
31 JAN 2016
The genetically engineered insects were designed to stop the spread of dengue fever but critics now fear the programme may have had a deadly consequence
Birth defect: Was the Zika outbreak caused by genetically-modified mosquitoes?
The Zika virus outbreak currently gripping the Americas could have been sparked by the release of genetically modified mosquitoes in 2012, critics say.
The insects were engineered by biotechnology experts to combat the spread of dengue fever and other diseases and released into the general population of Brazil in 2012.
But with the World Health Organisation (WHO) now meeting in Geneva to desperately discuss cures for the Zika virus, speculation has mounted as to the cause of this sudden outbreak.
The Zika virus was first discovered in the 1950s but the recent outbreak has escalated alarmingly, causing birth defects and a range of health problems in South and central America.
Update: Race for Zika vaccine begins
The first cases were reported in Brazil last May with up to 1.5 million people now thought to be affected by the virus which is spread by mosquitoes endemic to Latin America.
The Aedes aegypti mosquito sub-species that carries both the Zika virus and dengue was the type targeted with genetically modified mosquitoes.
The aim was to release only male Aedes mosquitoes into the wild and they would in turn produce offspring with their virus carrying female counterparts.
Carriers: Aedes Aegypti mosquitoes spread the virus
This offspring would then die off before breeding again due to the GM coding in their genes.
But experts expressed concerns about the programme at the time of its inception, arguing that further studies were needed on the potential consequences.
On Saturday, senior health experts shockingly announced that the outbreak could pose a bigger threat to global health than the Ebola epidemic that killed more than 11,000 people in Africa.
Outbreak: Experts have warned the Zika virus poses a greater threat to world health than Ebola
“In many ways the Zika outbreak is worse than the Ebola epidemic of 2014-15,” Jeremy Farrar, head of the Wellcome trust told The Guardian.
“Most virus carriers are symptomless.
“It is a silent infection in a group of highly vulnerable individuals – pregnant women – that is associated with a horrible outcome for their babies.”
The UK is unlikely to be affected by the outbreak because the virus carrying mosquitoes could not survive the climate.
But women returning from affected areas are warned to postpone trying for a babyfor at least a month in case they have been infected.
Zika virüsü GDO’lu çıktı
Virüs genetik mühendisliğinin bir çalışması mı…
03.02.2016
Latin Amerika’da ortaya çıkan Zika Virüsü’nün, bilim adamları tarafından humma hastalığını önlemek için genetiği değiştirilerek üremeleri sağlanan sinekler tarafından yayıldığı iddia edildi.
Daily Mirror’dan Elle Griffiths’in haberine göre genetik mühendisliğinin bu alanda yaptığı çalışmanın ölümcül sonuçlar doğurduğu aktarıldı.
Hamile kadınlarda mikrosefali hastalığını taşıyan bebeklerin doğmasına yol açan zika virüsü önlenemiyor. Dünya Sağlık Örgütü Cenevre’de acil toplantı yaptığı sıralarda korkunç bir iddia daha ortaya atıldı.
İddiaya göre Zika Virüsü Latin Amerika’da 1950’li yıllarda keşfedildi. Uzmanların çalışmalarıyla birlikte Zika Virüsü taşıyan sinekler, humma virüsü taşıyan genetiği değiştirilmiş sineklerle çiftleşerek üreyecekti. Yumurtalardan doğan yeni sineklerinse üreyemeden ölmesi sağlanacaktı. Bu çalışma bugüne kadar yarar sağladı. Ancak virüslü sineklerin genleri soyu tükenmesi planlanarak kodlanmasına karşın virüsü yok etmedi. Aksine genetiği değiştirilmiş sinekler Zika Virüsü’nün yayılmasına neden oldu. İddiaya göre bu durum bugünlerde başlayan salgına kadar anlaşılamadı.
Son günlerde Zika Virüsü’nün İngiltere’de de görüldüğü ve Avrupa’ya sıçradığı aktarılmıştı.