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.