Please read Jen's post here, it will be especially helpful to those working in Haiti currently and in the coming weeks/months.
Not sure what the cross over is from Twitter to blog - so this may be repetitive for some. If you know people in Haiti and have their cell numbers, please take time to call or text them today to make sure they know to be very careful with food, water, and hand washing. When we spoke with friends yesterday they had already heard incorrect rumors about how it was spreading. The best thing (along with praying for mercy and a quick stop to this) we can do is to try to help educate everyone about protecting themselves. They all need to know that this could be something that will spread for the next few months.