The last times they vaccinated people we didn't have so many immunocompromised people or people on steroids or with skin conditions or other health problems. If you have anyone in your family that you might care for with these type conditions, you should not be vaccinated unless it is post event, instead of pre-event. They are asking mostly older nurses and health care providers to be vaccinated in order to vaccinate others because they may still have some immunity from having the vaccine as a kid way back when.
Right now we only have 12 staff members vaccinated in our hospital (out of a staff of 1200) and they are only to care for any persons sick with smallpox, not to vaccinate people. The public health dept is responsible for that.
Reservists who are receiving the vaccine must keep it covered and dry. They even recommend that they do their own laundry and keep it separate from other family members. Until the scab falls off.
Public health says that about 20% of the people who are vaccinated have any reactions to the vaccination. Only about 5% have serious reactions to the vaccination which might include self vaccination to other parts of the body from contact with the live virus (such as around the eyes, face or other locations). They recommend that when the dressing is changed the old dressing is bagged (and sealed) and disposed of away from trash that family members might contact.
The virus is live, not dead like other vaccinations. That's why it is dangerous to persons who might be ill.