In a statement, the authority insisted athletes, participants and spectators would all be safe to travel to Brazil for the sporting events which are due to begin in Rio later this year.
It cited a University of Cambridge study, which estimated that less than one case of the virus would be contracted among 500,000 international visitors.
The Brazilian tourist board, Embratur, has calculated between 300,000 to half a million foreign guests will arrive in Brazil for the Olympics.
The Ministry of Health also noted that out of the 60 countries in which Zika is currently present, Brazil represents only 15% of the total global population exposed to the virus.
