Some babies infected with syphilis are born prematurely. Many infected babies have no symptoms at birth, but symptoms develop weeks or months later. Problems in newborns with syphilis may include:
swollen lymph nodes
enlarged liver and spleen
growth retardation
birth defects (for example, problems with the eyes or central nervous system)
bone problems
blisterlike rash
yellowish skin (jaundice)
anemia
dental problems.
Some babies are dead at birth.
Regardless of the example you're likely to give 'Aahh - you would have killed Jesus!' or whatever, yes, a responsible doctor would at least offer the option.