Hello doctor I m nineteen weeks pregnant . My rubella igg test was 1.93 positive during my first trimester ..but on my anamoly scan some type of infection is seen . So my doctor advised me for rubella igg avidity test ?? What is the purpose of this avidity test if already my rubella igg is done and my report is positive ? Are there any chances of rubella infection again after a positive rubella report? Will this have any problem in my child??