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Associated Press

Brazil has declared an end to its public health emergency for the Zika virus, 18 months after a surge in cases drew headlines around the world.
The mosquito-borne virus wasn’t considered a major health threat until the 2015 outbreak revealed that Zika can lead to severe birth defects. One of those defects, microcephaly, causes babies to be born with skulls much smaller than expected.
Photos of babies with the defect spread panic around the Western Hemisphere and around the globe, as the virus was reported in dozens of countries.
Brazil’s Health Ministry said that from January to April this year there had been 7,911 Zika cases, 95.3 percent down on the same period in 2016 when there were 170,535 cases.
“The end of the emergency doesn’t mean the end of surveillance or assistance” to affected families, said Adeilson Cavalcante, the secretary for health surveillance at the ministry, on Thursday. “The Health Ministry and other organizations involved in this area will maintain a policy of fighting Zika, dengue and chikungunya.”
All three diseases are carried by the Aedes aegypti mosquito.
But the WHO has warned that Zika is “here to stay,” even when cases of it fall off, and that fighting the disease will be an ongoing battle.
Adriana Melo, the Brazilian doctor who raised alarm bells in the early days of the outbreak about a link between Zika and birth defects, said the lifting of the emergency was expected following the decline in cases.
“The important thing now is that we don’t forget the victims,” said Melo.
Many would-be travellers cancelled their trips to Zika-infected places after the outbreak became widely known in 2015. The US Centres for Disease Control and Prevention and others recommended that women who were pregnant shouldn’t travel to affected areas. The concern spread even more widely when health officials said it could also be transmitted through sexual contact with an infected person.
The health scare came just as Brazil, the epicenter of the outbreak, was preparing to host the 2016 Olympics, fuelling concerns the Games could help spread the virus. One athlete, a Spanish wind surfer, said she got Zika while training in Brazil ahead of the Games.
In response to the outbreak, Brazil launched a mosquito-eradication campaign. The Health Ministry said those efforts have helped to dramatically reduce cases of Zika. From January through mid-April, the Health Ministry recorded 95 percent fewer cases than during the same period last year. The incidence of microcephaly has fallen as well.
The World Health Organisation lifted its own international emergency in November, even while saying the virus remained a threat.


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Zika virus

Brazil declares end to Zika emergency after 95 per cent fall in cases

Aedes aegypti mosquitoes, responsible for transmitting Zika, sit in a petri dish at the Fiocruz Institute in Recife, Brazil. Photo: AP

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