I have written a slightly more detailed update on the Dutch pages because the virus is currently in the news in the Netherlands. Here I shall just give a short update:
Since rhinopneumonia (EHV) can only be passed on by direct contact with nasal mucus, it is safe to say that the chances of catching the virus are very small. The most important thing is to be aware of any horse showing possible symptoms and to insure that if you have contact with this horse, you do not then make contact with another horse until you have changed out of infected clothing and washed yourself.