IgG antibodies are associated with a past infection. Since the antibodies did not change after 3 months, this means the infection was long ago in the past, and that she is immune. I m not sure what you mean by a natural abortion or if you meant the TORCH test was done on the fetus. Results of IgG antibodies in the baby indicate only passive transfer from the mother and do not indicate active infection. IgG antibodies remain after an infection clears up, and what her tests indicate is that she does NOT currently have an infection with either rubella or cytomegalovirus. Folic acid supplements are strongly recommended before and during pregnancy to avoid damage to the baby s nervous system. Iron deficiency anemia is common during pregnancy so supplemental iron is also recommended. Based on these tests, I am not clear why she received an R-vac injection. She was already immune. Hope this answers your query.