Also called “German Measles,” the Rubella virus is very rare these days because of childhood vaccination. The disease is quite mild, with slight fever and a faint red rash. People get better without a problem.
The danger, however, is if a pregnant woman gets Rubella. Then all sorts of terrible things can happen to the baby, including miscarriage, deafness, and brain damage (“Congenital Rubella Syndrome”). Fortunately, in 2015 the disease was declared eliminated from the Western Hemisphere. We hope that’s permanent.