Solo, a three-time Olympic medalist, shared a photo of a bed covered in mosquito repellent and a photo of herself holding a bottle of insect repellent and wearing a hat with a net. She used the hashtag #zikaproof alongside both photos.
On Wednesday, fans at the 60,000-capacity Mineirao Stadium booed Solo nearly every time she touched the ball. The crowd added "Zika, Zika," after their chants of "Ole, Ole, Ole, Ole."
The goalkeeper had expressed reservations earlier this year about even participating in the Rio Olympics, which have been beset by concerns about crime, water safety and poor living conditions for athletes and members of the press, in addition to Zika.
Prior to Wednesday’s game, Solo responded to criticisms of her tweets by saying she “would never want to offend the host country,” according to The Associated Press.
Solo also said she had spoken with “three different infectious disease doctors and specialists” before making the decision to participate in the 2016 Olympic Games.
The USWNT went on to defeat New Zealand 2 to 0. Solo said after the game she was not bothered by the fans’ heckling.
"I'm glad the fans had fun," Solo said, according to The Associated Press. "And if they had fun at my expense, more power to them."