[Change of rubella antibody transferred by mother in infants].
OBJECTIVE
To Know the antibody level of comparison in maternal-infant pairs and the change of rubella in infants, and to provide scientific basis for controlling congenital rubella syndrome.


METHODS
Newborn, 3, 6, 8, 9-month infant who never had rubella and their mothers were residents in Ningbo of Zhejiang, Harbin of Heilongjiang and Jinan of Shandong were collected as objects. Their serum samples were tested by the method of ELISA.


RESULTS
The positive rate of Rubella antibody in newborns, 3, 6, 8, 9, were 74.4, 14.9, 3.3, 4.6, 15.0 percent respectively, and GMC were 34.06, 5.42, 1.48, 1.10, 1.83IU/ml respectively. The positive rate and GMC of Rubella antibody in mothers were 71.1 percent and 30.96IU/ml. The correlation coefficient between mother and infant was 0.658.


CONCLUSIONS
Maternal-transferred rubella antibody decreased as the growth of infants. The positive rate of measles antibody was very low in 6 and 8-month, which almost had no protection.
Ma
Rui
R
Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, Zhejiang, China.
Xu
Guo-Zhang
GZ
Ma
Chao
C
D000328:Adult; D000914:Antibodies, Viral / Q000097:blood / Q000276:immunology*; D002681:China; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012409:Rubella / Q000097:blood / Q000151:congenital / Q000276:immunology*
D000914:Antibodies, Viral