The International Olympic Committee has faced widespread criticism for not barring Russia after proof of pervasive doping program.
The former world no. 1 golfer believes the IOC has abandoned athletes.
The baby's mother was infected with the mosquito-borne virus in Latin America.
The tech firms provided information about the suspects' use of both social networks.
Individual athletes' participation will be up to each sports federation.
Jihadi chatter centers on attacks against athletes that will gain media attention worldwide.
A Brazilian group pledged allegiance to ISIS Tuesday, three weeks before the summer games start.
The Jamaican sprinter believes the ban will scare athletes out of doping.
A WADA report published in November 2015 found systematic state-sponsored cheating and corruption.
Travelers should also be concerned about sunstroke, diarrhea and road accidents, according to a WHO expert.
Russia is already banned from this year's track competitions but U.S. and Canadian report calls for total ban amid doping scandal.
The legendary golfer understands the worries of Rory McIlroy and others who have opted out.
World athletics' governing body met in Zurich on Friday.
More than 200 health experts wrote an open letter in May calling for the games to be postponed or relocated because of the Zika outbreak.
The government canceled Tecnoloso's contract after the company filed for bankruptcy.
The British No.1 wants to consult doctors before deciding on Olympic involvement.
The world's greatest sprinter says WADA is doing all it can to ensure clean sport.
Vitaly Mutko apologizes and is 'ashamed' over doping scandal, which he blames on deceptive athletes.
The Australian golfer has pulled out of Rio partly for this reason.