1 / 7

Trends in Acute Hepatitis A Cases in the United States

This report provides an analysis of the reported and adjusted number of acute hepatitis A cases in the United States from 1990 to 2009. It also examines the incidence of the disease by age group, sex, and race/ethnicity, as well as the distribution of risk behaviors and exposures associated with hepatitis A in 2009.

donaldy
Download Presentation

Trends in Acute Hepatitis A Cases in the United States

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Figure 2.1. Reported and adjusted* number of acute hepatitis A cases — United States, 1990–2009 *Adjusted for underreporting. Source: National Notifiable Diseases Surveillance System (NNDSS)

  2. Figure 2.2. Incidence of acute hepatitis A, by age group — United States, 1990–2009 Source: National Notifiable Diseases Surveillance System (NNDSS)

  3. Figure 2.3. Incidence of acute hepatitis A, by sex — United States, 1990–2009 Source: National Notifiable Diseases Surveillance System (NNDSS)

  4. Figure 2.4. Incidence of acute hepatitis A,by race/ethnicity — United States, 1990–2009 Source: National Notifiable Diseases Surveillance System (NNDSS)

  5. Figure 2.5. Distribution of risk behaviors/exposures associated with acute hepatitis A — United States, 2009 290 15% Risk identified* 818 41% No risk identified No risk data reported 879 44% * Includes case reports indicating the presence of at least one of the following risks 2–6 weeks prior to onset of acute, symptomatic hepatitis A: 1) having traveled to hepatitis A-endemic regions of Mexico, South/Central America, Africa, Asia/South Pacific, or the Middle East; 2) having sexual/household or other contact with suspected/confirmed hepatitis A patient; 3) being a child/employee in day care center/nursery/preschool or having had contact with such persons; 4) being involved in a foodborne/waterborne outbreak; 5) being a man who has sex with men; and 6) using injection drugs. Source: National Notifiable Diseases Surveillance System (NNDSS)

  6. Figure 2.6a. Acute hepatitis A reports*,by risk exposure† — United States, 2009 Sexual/household contact of hepatitis A-infected person 44 744 1199 31 Child/employee in a daycare center 1,032 Yes 924 No 45 Contact daycare center child or employee Missing § 866 1076 68 Food/waterborne outbreak 757 1162 16 Other contact with hepatitis A patient 772 1199 0 200 400 600 800 1000 1200 Number of cases *A total of 1,987 case reports of hepatitis A were received in 2009. †More than one risk exposure may be indicated on each case report. §No risk data reported. Source: National Notifiable Diseases Surveillance System (NNDSS)

  7. Figure 2.6b. Acute hepatitis A reports*,by risk behavior† — United States, 2009 119 675 International travel 1193 9 Yes 804 Injection-druguse No 1174 Missing § 6 • Men who have sex with men ¶ 63 970 0 200 400 600 800 1000 1200 Number of cases *A total of 1,987 case reports of hepatitis A were received in 2009. †More than one risk behavior may be indicated on each case report. §No risk data reported. ¶A total of 1,039 hepatitis A cases were reported among males in 2009. Source: National Notifiable Diseases Surveillance System (NNDSS)

More Related