On Sunday, the first cases of the Zika-linked Zika virus emerged in Brazil.
The World Health Organization says there are currently 1,929 confirmed cases and 1,766 probable cases.
The virus was first identified in the Americas, in Latin America and the Caribbean, and in Europe.
It has since spread to Asia and the Pacific.
The number of cases has been rising steadily, and it was thought that Brazil was ready to get rid of the virus by the end of April.
But that timetable appears to be no longer in place, according to the World Health Assembly.
The World Health organization has declared a public health emergency in Brazil and issued travel warnings for a number of regions and cities, including the capital Brasilia, and some of the more remote parts of the country.
There have also been reports of local outbreaks of the coronavirus.
The health crisis is particularly bad in Rio de Janeiro, where the population is estimated to be almost one million.
The city of more than 30 million has more than 70 percent of the nation’s hospitals and has experienced a surge in cases.
More than 3,000 people have been confirmed with the virus, and nearly 600 have died.
Brazil has been testing thousands of pregnant women for Zika in the hopes that they will get pregnant, and a trial of one of the vaccines was recently halted because of a lack of data.
It is not clear how many women are using the vaccine.