Table 2

	Number of studied infant	MCA(SD) EU/mL	CI ₉₅
Mother	7	77.47(27.85)	101.81-45.82
Newborn	7	82.62(21.03)	98.35-56.32
3 month old infants	11	36.17(7.49)	44.03-28.30
7 month old infants	11	94.44(18.30)	108.30-80.57
19-20 month old infants	4	141.50(40.90)	206.60-76.41

^aDTwP: diphtheria and tetanus toxoids, whole –cell pertussis vaccine for children.
^bTransplacental transfer ratio of antibodies: 82.62 to 77.47: 106.60%

Table 2: Transplacental transfer ratio of maternal pertussis antibodies to the newborn, and Infants immunologic response to routine DTwP^a vaccination, Sari-Iran: 2008-2011.