Brazilian president Dilma Rousseff
has said national mobilisation is needed to fight Zika
Zika
virus
President Dilma Rousseff has called
on the whole of Brazilian society to help combat the spread of the Zika virus,
which has been linked to birth defects.
Ms Rousseff said national
mobilisation was needed to eliminate the mosquitoes that spread the virus, and
urged community groups and unions to help.
Zika is thought to cause a form of
infant brain damage, microcephaly.
Three to four million people could
be infected with Zika in the Americas this year, experts have warned.
Ms Rousseff rejected comments made
by her health minister earlier this week, who said Brazil was badly losing the
fight against the virus.
But Brazil is the country worst
affected by the Zika outbreak, with 270 cases of microcephaly confirmed by the
health ministry and 3,448 being investigated.
Concerns have arisen about Brazil's
ability to safely host this year's Olympic Games in the capital Rio de Janeiro.
Thomas Bach, the head of the International Olympic Committee, has said steps
are being taken to protect the event.
The IOC said it will issue
guidelines later on Friday for athletes and visitors taking part.
Abortion
petition
A group of Brazilian lawyers,
activists and scientists is to ask the country's supreme court to allow
abortions for women who have contracted the virus.
Abortions are illegal in Brazil,
except in health emergencies or cases of rape or, since 2012, another brain
condition known as anencephaly.
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content.
Media captionDeborah Diniz explains
why she feels abortion laws need to change in Brazil
The new petition is to be delivered
to the supreme court in two months' time. The BBC has learned that it argues
that "the Brazilian state is responsible for the Zika outbreak" for
not having eradicated the Aedes aegypti mosquito which carries it.
Brazilian women "should not be
penalised for the consequences of flawed policies", it says.
The group behind the microcephaly
supreme court plea also won the exception for anencephaly in 2012.
Debora Diniz, a law professor at
Brasilia University, told the BBC the disease disproportionately affected the
poor.
She said: "It is important to
remember, when we talk about abortion and reproductive rights in general, that
we have a social class split in Brazil - wealthy women will access safe
abortion, legal or illegal, and poor women will go to the illegal market or
continue to be pregnant."
No
vaccine
Most people do not develop symptoms
of the Zika virus but may pass the virus on to their children. There is no
known cure or vaccine. The US says it hopes to begin human vaccine trials by
the end of 2016.
Officials from the US National
Institute of Health (NIH) said they had two potential Zika vaccines in
development. One that is based on an experimental West Nile vaccine could be
repurposed for Zika and enter clinical trials by the end of 2016, the NIH said.
WHO director general Dr Margaret
Chan said Zika had gone "from a mild threat to one of alarming
proportions". She has set up a Zika "emergency team" following
the "explosive" spread of the virus.
The team will meet on Monday to
decide whether Zika should be treated as a global emergency.
Zika was first detected in Uganda in
1947, but has never caused an outbreak on this scale. Brazil reported the first
cases of Zika in South America in May 2015.
WHO officials said between 500,000
and 1.5 million people had been infected in Brazil, and the virus has since
spread to more than 20 countries in the region.
Image copyright US CDC Image caption
Aedes aegypti
What
is the Zika virus?
- Spread by the Aedes aegypti mosquito, which also carries dengue fever and yellow fever
- First discovered in Africa in the 1940s but is now spreading in Latin America
- Scientists say there is growing evidence of a link to microcephaly, that leads to babies being born with small heads
- Can lead to fever and a rash but most people show no symptoms, and there is no known cure
- Only way to fight Zika is to clear stagnant water where mosquitoes breed, and protect against mosquito bites
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