I'm not sure there is a right answer to this question right now. To me it is a personal decision. If you decide to travel, take precautions. If you are close to someone that is high risk, take extra precautions. At the time of this post there have been approximately 3.9 million confirmed cases in the U.S. (if you trust the numbers...). That is barely over 1% of the U.S. population. I know very few people that have contracted this illness (luckily), but those that have have stated that it is not a pleasant experience. They would rate it as much worse than the flu.