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Brazil was the center of news about the Zika virus for months. The numbers on those affected danced in the thousands, health alerts were raised worldwide and even WHO advised postponing pregnancies for couples of childbearing age.
And it is that, the Zika virus, transmitted by the Aedes aegypti mosquito, was blamed for the birth of babies with microcephaly, a neurological disorder in which the baby's head circumference is less than considered normal and also causes other motor pathologies.
However, more than a year after this epidemic began, Argentine doctors reveal that It was not Zika that caused microcephaly in babies, but pesticides poured into the water to kill mosquitoes.
Still today, after months of plague, there are many questions in the air about the epidemic. It is known that not all the cases of microcephaly described were due to Zika virus infection and yes to genetic causes, but it has also come to light research that reveals the true origin of microcephaly in affected babies.
The group of Argentine and Brazilian doctors, The Doctors of Fumigated Towns (PCST), They assure that the microcephaly was not due to the spread of Zika but to the pesticides spilled in the water to kill the mosquito.
This discharge is the pyriproxyfen, a larvicide that affects the development of the mosquito, since it interferes in its molting and reproduction, in addition to sterilizing the adults. It is often used to control pests.
Months ago the Brazilian press questioned the massive use of the pesticideSeveral reports revealed that indiscriminate fumigations were carried out and that it was introduced into the drinking water network.
Argentine doctors along with other information published in media such as The Telegragh or Washington Post affirm that the largest number of cases of microcephaly occurred in Brazil, where pyriproxyphene is used, while in other countries, such as Colombia, no connection between the Zika virus has been reported. and cases of microcephaly.
In the state of Rio Grande do Sul already The use of pyriproxyfen has been discontinued until more information is available. However, the World Health Organization states that, despite the report by this group of Argentine doctors, there is not enough evidence to support the hypothesis, in the same way that there is no data to affirm that Zika was the cause. of the almost 4000 cases of microcephaly detected.
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