Table 37. Congenital syphilis —Reported cases and rates in infants < 1 year of age: United States (excluding outlying areas), 1963–2005

Year	Cases		Rate per 100,000 Live Births
1963*	367		9.2
1964*	336		8.7
1965*	335		8.9
1966*	333		8.8
1967	156		4.1
1968	274		7.3
1969	264		7.0
1970	323		8.6
1971	422		11.9
1972	360		11.0
1973	295		9.4
1974	250		7.9
1975	169		5.3
1976	160		5.1
1977	134		4.0
1978	104		3.0
1979	123		3.5
1980	107		3.0
1981	160		4.4
1982	159		4.3
1983	158		4.3
1984	247		6.7
1985	266		7.1
1986	357		9.5
1987	444		11.7
1988	658		16.8
1989	1,807		44.7
1990	3,816		91.8
1991	4,410		107.3
1992	4,024		99.0
1993	3,395		84.9
1994	2,435		61.6
1995	1,862		47.7
1996	1,282		32.9
1997	1,081		27.9
1998	844		21.4
1999	579		14.6
2000	580		14.3
2001	503		12.5
2002	459		11.4
2003	432		10.6
2004	371		9.1
2005	329		8.0

^*For 1963 to 1966 data were reported for the federal fiscal year ending June 30 of the year indicated.

NOTE: The surveillance case definition for congenital syphilis changed in 1988. As of 1995, cases of congenital syphilis < 1 year of age are obtained using case reporting form CDC 73.126. For the period 1995 through 2005, yearly case counts in this table correspond to confirmed diagnoses of congenital syphilis among those known to be less than one year of age. As a result, the case counts in this table are a subset of those listed in Table 1 for the years prior to 1995.