Cov khoom siv yog cov tshuaj tiv thaiv kab mob sai sai rau kev kuaj pom zoo ntawm IgG cov tshuaj tiv thaiv tiv thaiv kab mob qhua pias / Rubella / Mumps Virus hauv tib neeg cov ntshav / ntshav los pab kuaj mob Measles / Rubella / Mumps Virus.