Researchers are still learning today about this novel virus.  We don’t yet know if temperature affects the lifespan on various surfaces – but what we know is that it can survive on surfaces from hours to days.  Below is a chart to note what has been observed in ideal lab conditions.

We don’t yet know how much of the virus is needed for us to get sick, but it seems that it is more likely to become sick from exposure to others that are sick than from touching contaminated surfaces.  Remember to wash hands frequently, as it’s our best defense.