Seem. I was in Brazil for six weeks, two weeks in Rio. Didn't see any Mosquitos, didn't here any talk of zika, the economic collapse and political corruption are the major issues BrazIL is dealing with. This has led to higher crime in poorer areas but, the tourist areas and places around the games are safe and should be ok. The Olympics will likely have issues but, not the catastrophe that CNN would have you believe. Terrorism is likely the greatest threat.