Figure 2 1 reported and adjusted number of acute hepatitis a cases united states 1990 2009
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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 ). Figure 2.2. Incidence of acute hepatitis A, by age group — United States, 1990–2009.

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Figure 2 1 reported and adjusted number of acute hepatitis a cases united states 1990 2009 l.jpg
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)


Figure 2 2 incidence of acute hepatitis a by age group united states 1990 2009 l.jpg
Figure 2.2. Incidence of acute hepatitis A, by age group — United States, 1990–2009

Source: National Notifiable Diseases Surveillance System (NNDSS)


Figure 2 3 incidence of acute hepatitis a by sex united states 1990 2009 l.jpg
Figure 2.3. Incidence of acute hepatitis A, by sex — United States, 1990–2009

Source: National Notifiable Diseases Surveillance System (NNDSS)


Figure 2 4 incidence of acute hepatitis a by race ethnicity united states 1990 2009 l.jpg
Figure 2.4. Incidence of acute hepatitis A,by race/ethnicity — United States, 1990–2009

Source: National Notifiable Diseases Surveillance System (NNDSS)


Slide5 l.jpg
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)


Figure 2 6a acute hepatitis a reports by risk exposure united states 2009 l.jpg
Figure 2.6a. Acute hepatitis A reports*, associated with acute hepatitis A — United States, 2009by 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)


Figure 2 6b acute hepatitis a reports by risk behavior united states 2009 l.jpg
Figure 2.6b. Acute hepatitis A reports*, associated with acute hepatitis A — United States, 2009by 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)


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