The mosquito-borne Zika virus may be even more dangerous than previously thought, scientists in Brazil say.

With 100 days to go before the Olympic Games begin in Rio de Janeiro, the Olympic flame has been handed over in Athens to the Brazilian authorities.

Neymar will not play for Brazil at the Copa America but will be available for the Rio Olympics, according to the striker's club Barcelona.

Neymar will miss the Copa America in June, but will be released to represent his country at the Rio Olympics in August, FC Barcelona announced on Wednesday.

Brazil's President Dilma Rousseff says she is "outraged" at attempts to impeach her and has a clear conscience.

Brazil's lower house of congress votes to start impeachment proceedings against President Dilma Rousseff, who is accused of manipulating government figures.

Brazil's lower house of Congress is due to hold a crucial vote on whether to impeach President Dilma Rousseff over charges of manipulating government accounts for political gains.

President Dilma Rousseff of Brazil has denounced a "coup" plot against her, suggesting that Vice-President Michel Temer is one of the "conspirators".

Scientists in Brazil uncovers new brain disorder associated with Zika infections in adults: an autoimmune syndrome called acute disseminated encephalomyelitis, or ADEM, that attacks the brain and spinal cord.

Brazil's health ministry says it will launch a smartphone application to track the Zika virus during the Olympics in Rio de Janeiro and help visitors detect the disease.

South Korean health authorities say a man who recently returned home from Brazil has been confirmed to be infected with the Zika virus.

Every year since 2011 Jinjing, a South American Magellanic penguin swims 8,000 kilometers to Brazil to meet and hangout his human friend who also happened to be his savior.

Brazilian prosecutors are filing charges against ex-President Lula da Silva in a money laundering investigation, officials say.

Evidence mounted linking Zika to the birth defect microcephaly, and the United Nations health agency set a review of travel advice related to the outbreak of the virus while US officials planned strategy to control mosquitoes that spread it.

Global health officials are racing to better understand the Zika virus behind a major outbreak that began in Brazil last year and has since spread to many countries in the Americas.

France has detected its first sexually transmitted case of Zika in a woman whose partner had traveled to Brazil, the epicentre of an outbreak of the virus, a senior health official says.

The organising committee for the August Olympics in Rio de Janeiro said it will charge national delegations to have mosquito screens on athletes' rooms.

The head of the World Health Organization warns that the Zika outbreak would likely worsen before nations besieged by the mosquito-borne virus linked to thousands of birth defects in Brazil see relief.

A huge meteor explodes in the atmosphere over the South Atlantic Ocean near Brazil without causing damage to lives and properties.

Brazil is planning to fight the Zika virus by zapping millions of male mosquitoes with gamma rays to sterilize them and stop the spread of the virus linked to thousands of birth defects.