A VDRL reactive mother gave birth to an infant. All of the following would help in determining the risk of transmission to the infant, EXCEPT
• positive TPHA mother is responsible for transmission of infection to the infant
• In infants no test (even TPHA) can show difference between asymptomatic infected and noninfected.
• VDRL — detect antibody titre raised in both infants and mother sugge.ctc the transmission
• 4 weeks before delivery treatment should be completed so time interval is important factor.
TPHA test on the serum sample of the mother
TPHA test on the serum sample of the infant
VDRL on the paired serum sample of the infant and mother
Time interval between the treatment of the mother and her delivery