The latest on Zika and the Olympics

(CNN)All eyes are on Rio and its Zika-carrying mosquitoes as the countdown to the 2016 Olympics continues. Here is the latest on how the battle against the Zika virus is being won or lost and how that effort is affecting athletes, visitors and the success of the Games.

May 19, 2016: USA Swimming moves training out of Puerto Rico
USA Swimming informed its coaches and athletes of the relocation of a pre-Olympic training camp from Puerto Rico to Atlanta because of “the current situation with the Zika virus.” Director Frank Busch sent a letter the team informing them of the change of plans for the second camp to be held in the days leading up to the group’s departure for the Summer Games in Rio. “According to the CDC (Centers for Disease Control and Prevention) and other health experts in the field of science and medicine, our athletes would be highly exposed to the Zika virus in Puerto Rico,” the letter said, adding that the health and safety of team members is the priority. Busch also said the team will be providing athletes and coaches with tools to reduce the risk of mosquito bites while they are in Rio.
    May 16, 2016: Australian Olympians will get ‘Zika-proof’ condoms


    Nine months after the first cases of Zika, women begin to give birth to babies with an unusual birth defect, microcephaly, in which the baby’s head and brain do not develop properly.
    February 2015: Brazil sees first cases of Zika but doesn’t know what it is
    From February through April, Brazil sees 7,000 cases of a mild viral reaction characterized by rash, fever and red eyes. Zika isn’t identified in the blood samples until May. By July 2015, doctors begin seeing a few cases of Guillain-Barr Syndrome.

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