Here is a bit I found:

Hepatitis B vaccine

The universal vaccination of infants with Hepatitis B vaccine has raised some alarming concerns -

• A 1999 study concluded that "The increase in the number of cases of unexplained neonatal fever seems to be associated with the introduction of routine hepatitis B vaccination on the first day of life". (60)

• Midwives have found that the birth dose of vaccine can interfere with successfully establishing breastfeeding as a result of common side-effects such as irritability, decreased appetite, fever, pain and persistent crying. (61)

• In America adverse reactions to Hepatitis B vaccine (including deaths), outnumbered cases of Hepatitis B in children by 14 to 1. This lead to the 1999 Congressional Hearings to investigate its safety.

"An intelligent and conscientious physician might well recommend AGAINST hepatitis B vaccine, especially in newborns, unless a baby is at unusual risk because of an infected mother or household contact or membership in a population in which disease is common." (62)

60. Linder N., et al, Unexplained fever in neonates may be associated with hepatitis B vaccine, Arch Dis Child Fetal Neonatal Ed, Nov1999; 81: F206-207

61. Sandra Eales, Hep B Vaccination at birth - just another barrier to breast feeding , Australian Midwifery, December 2003; 16(4): 4&5

62. Statement of the Association of American Physicians & Surgeons to the Subcommittee on Criminal Justice, Drug Policy, and Human Resources of the Committee on Government Reform U.S. House of Representatives, 1999
You have to remember with studies, they only get financed to do studies once, once it's done, its done and there are no second chances due to $$ involved.

Midwives are still today noticing breastfeeding and settling differences, not for every baby of course, but enough to make them notice.