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Zika - the history of a virus | DW Documentary

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In 2016, the Zika virus, a virus spread by mosquitoes which can cause birth defects, was raging primarily in Brazil. The WHO declared a state of emergency.
The documentary shows the global fight against the spread of the Zika virus. The virus is transmitted by the Aedes aegypti mosquito. Symptoms of the Zika virus include fever and joint pain. In 2015, researchers began observing a rise in congenital malformations, also known as birth defects, in newborns in Latin America. A short time later, the World Health Organization (WHO) declared a "public health emergency of international proportions" in response to the spread of Zika. In Latin America and especially Brazil, Zika infections had reached epidemic proportions. If pregnant women contract the Zika virus infection, it can lead to fetal brain damage or children being born with birth defects. Children with microcephaly are born with an abnormally small brain and head, often accompanied by developmental disabilities and severe neurological disorders. In rare cases, people infected with Zika can contract Guillain-Barré syndrome, which attacks the peripheral nervous system. While the number of Zika cases in Brazil has declined, the virus continues to spread, moving from Central and South America to southern Florida. The Philippines, Singapore, Thailand, Vietnam, Laos, Cambodia, Malaysia, large parts of Indonesia, the Maldives and India are also affected, as are Senegal and Uganda in Africa. Researchers from all over the world are working flat-out to prevent the further spread of Zika, which is transmitted by mosquitoes. This documentary is based on research generated in the fields of epidemiology, entomology and virology. It explains where the Zika virus originated and what symptoms it causes. Scientists are also looking for ways to counter daytime-active Aedes mosquitoes. These mosquitoes, which also transmit yellow fever and other diseases, need only a droplet of standing water to lay their eggs, which allows them to reproduce quickly. In Brazil, in an attempt to stop the spread of the Zika virus, people were urged to eliminate all sources of standing water - a particular problem in the country’s slums, where the lack of a sewage system often causes wastewater to accumulate. Before Zika, no other virus spread by mosquitoes had also spread by sexual transmission. Scientists have also been working to develop new vaccines against the virus and early tests look promising.
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