In some places, the equivalent of two years' worth of rainfall fell in one day. More rains are expected, which will further compound the already serious humanitarian situation.
Donations will go towards providing refugees with shelter, food, clean water, health-care, education and legal protection. The amount is equivalent to 9% of the total funds needed in 2020.
Some unaccompanied children end up living on the streets, where they may be particularly vulnerable to abuse or to recruitment by Brazilian criminal gangs, Human Rights Watch found.
Gavi will finance the establishment of an emergency stockpile of 500,000 doses - a positive step, said MSF. It is calling for complete transparency in the overall global stockpile available.