How many months can a baby be tested for the five hepatitis B antigens?

Patient's question:

Hello, his father has hepatitis B (minor positive). I have antibodies. I'm wondering if I can pass it to the baby, and when is the best time to do the HBsAg, HBeAg, anti-HBe, anti-HBs, and anti-HBc test?

Doctor's answer:

Hello
Consider that the father of the child has hepatitis B, and the child is generally not contagious.
Guidance:
There is not much concern. It is recommended to wait until the child is older to have the test. Currently, there is no need for testing.
If the mother has hepatitis B, there may be intrauterine transmission. For the child's condition, there is no need for testing.