Number of newly reported cases and incidence rate of selected notifiable diseases among persons ages 15 to 24: Selected years, 1995 through 2007

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Table 45.	Number of newly reported cases and incidence rate of selected notifiable diseases among persons ages 15 to 24: Selected years, 1995 through 2007

Disease	1995	2000	2001	2002	2003	2004	2005	2006	2007
	Number of newly reported cases
AIDS¹	2,666	1,567	1,721	1,858	2,019	2,119	2,299	—	2,305
Chlamydia²	—	508,736	569,254	600,224	630,385	663,484	693,239	726,669	779,280
Gonorrhea	228,698	212,679	215,672	207,324	195,987	189,629	196,177	206,569	209,678
Syphilis	4,860	1,338	1,223	1,193	1,182	1,368	1,623	1,946	2,481
Tuberculosis	1,703	1,623	1,595	1,499	1,573	1,600	1,542	1,540	1,581
Lyme disease	994	1,632	1,550	2,155	1,987	1,804	2,280	1,947	2,833
	Incidence rate per 100,000
AIDS¹	7.5	4.2	4.4	4.7	5.0	5.1	5.5	—	5.4
Chlamydia²	—	1,349.4	1,452.8	1,531.8	1,553.1	1,610.2	1,662.4	1,727.0	1,836.4
Gonorrhea	645.0	564.1	550.4	529.1	482.9	460.2	470.4	490.9	494.1
Syphilis	13.7	3.6	3.1	3.0	2.9	3.3	3.9	4.6	5.9
Tuberculosis	4.8	4.3	4.1	3.8	3.9	3.8	3.7	3.7	3.7
Lyme disease	2.8	4.3	4.0	5.5	4.9	4.4	5.5	4.7	6.7

— Not available.
¹ In 2006, the Centers for Disease Control upgraded its national surveillance data management system for human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS). During this transition, the CDC did not provide updates on AIDS or HIV infection surveillance data.


² 1995 data for Chlamydia are not available by age.
NOTE: A "notifiable disease" is one for which regular, frequent, and timely information on individual cases is considered necessary for the prevention and control of the disease. For more information, see http://www.cdc.gov/ncphi/disss/nndss/nndsshis.htm.
SOURCE: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention (CDC), Morbidity and Mortality Weekly Report—United States, selected years, 1995–2007.