A little Rubella history and a rhetorical question.
What happens when the live rubella vaccine virus is shed from a vaccinated person, and from breast milk?
From Merck’s package insert. “Excretion of small amounts of the live attenuated rubella virus from the nose or throat has occurred in the majority of susceptible individuals 7 to 28 days after vaccination.” (BUT DON’T WORRY) “There is no confirmed evidence to indicate that such virus is transmitted to susceptible persons who are in contact with the vaccinated individuals.”
One would have to have a suspicion and a clue as to what rubella looks like in order to CONFIRM the diagnosis, wouldn’t one? This is another virus that is best to have as a child, so that when pregnancy occurs, the mother is immune. BTW, children who were vaccinated as babies, and again when they were 11, often lose their immunity.
But even still, evidence exists that the infection causes fetal damage is minimal, and is dependent on more than just infection and vaccination.
Have a look at this excerpt in the second frame from Bitsch 1987 entitled Rubella in pregnant Danish women 1975-1984. The likelihood of a baby becoming congenitally deformed is mother-dependant, in that her diet (Vitamin A, folic acid) and how many weeks pregnant she is are the important factors. 80% of pregnant women who catch rubella in the first trimester do not have babies with congenital deformities.