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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.

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