Hepatitis A Tables and Figures

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Table 2.1 Number and rate of reported cases of hepatitis A, by state or jurisdiction and nationally ― United States, 2013–2017.
Table 2.2 Number and rate of reported cases of hepatitis A, by selected characteristics — United States 2013–2017.
Table 2.3 Number and rate of deaths with hepatitis A listed as a cause of death among US residents, by demographic characteristic and year — United States, 2013–2017.
Figure 2.1 Actual number of hepatitis A cases submitted to CDC by states and estimated number of hepatitis A cases — United States, 2013–2017.
Figure 2.2 Rates of reported hepatitis A cases, by state compared to the 2017 overall rate of hepatitis A — United States, 2016 and 2017.
Figure 2.3 Rates of reported hepatitis A, by age group — United States, 2002–2017.
Figure 2.4 Rates of reported hepatitis A, by sex — United States, 2002–2017.
Figure 2.5 Rates of reported hepatitis A, by race/ethnicity — United States, 2002–2017.
Figure 2.6 Number and rate of reported cases of hepatitis A, by selected characteristics — United States 2013–2017.
Figure 2.7 Reported cases of hepatitis A, by risk behavior/exposure — United States, 2017.

Table 2.1. Number and rate* of reported cases† of hepatitis A, by state or jurisdiction and nationally ― United States, 2013–2017.

Table 2.1.
State 2013
No.		 2013
Rate*		 2014
No.		 2014
Rate*		 2015
No.		 2015
Rate*		 2016
No.		 2016
Rate*		 2017
No.		 2017
Rate*
Alabama 10 0.2 15 0.3 23 0.5 19 0.4 23 0.5
Alaska 1 0.1 1 0.1 4 0.5 2 0.3 — —
Arizona 66 1.0 29 0.4 54 0.8 32 0.5 59 0.8
Arkansas 9 0.3 2 0.1 10 0.3 13 0.4 7 0.2
California 255 0.7 142 0.4 179 0.5 229 0.6 947 2.4
Colorado 51 1.0 23 0.4 25 0.5 22 0.4 65 1.2
Connecticut 19 0.5 23 0.6 9 0.3 16 0.4 17 0.5
Delaware 4 0.4 1 0.1 2 0.2 1 0.1 6 0.6
District of Columbia — — U U U U 4 0.6 3 0.4
Florida 115 0.6 90 0.5 108 0.5 115 0.6 261 1.2
Georgia 36 0.4 24 0.2 30 0.3 44 0.4 24 0.2
Hawaii 16 1.1 5 0.4 6 0.4 285 20 8 0.6
Idaho 8 0.5 7 0.4 9 0.5 7 0.4 4 0.2
Illinois 79 0.6 82 0.6 57 0.4 71 0.6 73 0.6
Indiana 32 0.5 20 0.3 19 0.3 18 0.3 21 0.3
Iowa 17 0.6 12 0.4 16 0.5 16 0.5 9 0.3
Kansas 11 0.4 7 0.2 7 0.2 5 0.2 6 0.2
Kentucky 24 0.5 19 0.4 16 0.4 9 0.2 71 1.6
Louisiana 14 0.3 5 0.1 5 0.1 12 0.3 8 0.2
Maine 10 0.8 8 0.6 8 0.6 8 0.6 7 0.5
Maryland 29 0.5 27 0.5 19 0.3 37 0.6 29 0.5
Massachusetts 43 0.6 43 0.6 34 0.5 64 0.9 52 0.8
Michigan 83 0.8 45 0.5 51 0.5 112 1.1 670 6.7
Minnesota 32 0.6 19 0.3 21 0.4 15 0.3 30 0.5
Mississippi 5 0.2 3 0.1 2 0.1 2 0.1 3 0.1
Missouri 8 0.1 20 0.3 9 0.1 16 0.3 27 0.4
Montana 6 0.6 5 0.5 2 0.2 3 0.3 3 0.3
Nebraska 13 0.7 9 0.5 6 0.3 21 1.1 4 0.2
Nevada 19 0.7 5 0.2 11 0.4 14 0.5 19 0.6
New Hampshire 9 0.7 5 0.4 2 0.2 8 0.6 7 0.5
New Jersey 68 0.8 59 0.7 59 0.7 74 0.8 71 0.8
New Mexico 20 1.0 8 0.4 6 0.3 4 0.2 4 0.2
New York 167 0.8 84 0.4 123 0.6 99 0.5 218 1.1
North Carolina 46 0.5 38 0.4 45 0.4 52 0.5 29 0.3
North Dakota 9 1.2 9 1.2 5 0.7 2 0.3 — —
Ohio 59 0.5 32 0.3 36 0.3 36 0.3 45 0.4
Oklahoma 14 0.4 17 0.4 11 0.3 11 0.3 9 0.2
Oregon 29 0.7 13 0.3 28 0.7 15 0.4 20 0.5
Pennsylvania 53 0.4 48 0.4 43 0.3 62 0.5 69 0.5
Rhode Island 4 0.4 8 0.8 4 0.4 4 0.4 6 0.6
South Carolina 14 0.3 6 0.1 16 0.3 21 0.4 21 0.4
South Dakota 4 0.5 3 0.4 2 0.2 1 0.1 1 0.1
Tennessee 20 0.3 12 0.2 14 0.2 7 0.1 6 0.1
Texas 109 0.4 124 0.5 147 0.5 139 0.5 129 0.5
Utah 12 0.4 8 0.3 8 0.3 12 0.4 159 5.1
Vermont 7 1.1 1 0.2 3 0.5 5 0.8 2 0.3
Virginia 36 0.4 27 0.3 50 0.6 190 2.3 46 0.5
Washington 45 0.6 26 0.4 26 0.4 31 0.4 28 0.4
West Virginia 4 0.2 12 0.6 8 0.4 15 0.8 6 0.3
Wisconsin 37 0.6 7 0.1 9 0.2 7 0.1 16 0.3
Wyoming — — 1 0.2 3 0.5 — — 18 3.1
U.S. 1,781 0.6 1,239 0.4 1,390 0.4 2,007 0.6 3,366 1.0

Source: CDC, National Notifiable Diseases Surveillance System.

* Rate per 100,000 population.

† For case definition, see https://wwwn.cdc.gov/nndss/conditions/hepatitis-a-acute/

—: No reported cases. The reporting jurisdiction did not submit any cases to CDC.

U: Unavailable. The data are unavailable.

Table 2.2. Number and rate* of reported cases† of hepatitis A, by selected characteristics — United States 2013–2017.

Table 2.3.
2013
No.		 2013
Rate*		 2014
No.		 2014
Rate*		 2015
No.		 2015
Rate*		 2016
No.		 2016
Rate*		 2017
No.		 2017
Rate*
Total§ 1,781 0.6 1,239 0.4 1,390 0.4 2,007 0.6 3,366 1.0
Age group                    
0 – 9 years 57 0.1 41 0.1 48 0.1 47 0.1 40 0.1
10 – 19 years 138 0.3 114 0.3 97 0.2 131 0.3 86 0.2
20 – 29 years 299 0.7 246 0.5 287 0.6 392 0.9 659 1.4
30 – 39 years 302 0.7 207 0.5 233 0.6 391 0.9 893 2.1
40 – 49 years 267 0.6 139 0.3 164 0.4 333 0.8 621 1.5
50 – 59 years 278 0.6 182 0.4 205 0.5 297 0.7 554 1.3
60+ years 415 0.7 304 0.5 353 0.5 409 0.6 509 0.7
Sex
Male 864 0.6 645 0.4 726 0.5 1,107 0.7 2,209 1.4
Female 914 0.6 591 0.4 662 0.4 897 0.5 1,149 0.7
Race/ethnicity
American Indian/Alaskan Native 7 0.3 4 0.2 5 0.2 3 0.1 13 0.5
Asian/Pacific Islander 101 0.6 135 0.7 114 0.6 299 1.5 124 0.6
Black, Non-Hispanic 75 0.2 82 0.2 71 0.2 137 0.3 303 0.7
White, Non-Hispanic 962 0.5 566 0.3 701 0.3 865 0.4 1,979 1.0
Hispanic 278 0.5 211 0.4 219 0.4 293 0.5 471 0.8
HHS Region¶
Region 1 92 0.6 88 0.6 60 0.4 105 0.7 91 0.6
Region 2 235 0.8 143 0.5 182 0.6 173 0.6 289 1.0
Region 3 126 0.4 115 0.4 122 0.4 309 1.0 159 0.5
Region 4 270 0.4 207 0.3 254 0.4 269 0.4 438 0.7
Region 5 322 0.6 205 0.4 193 0.4 259 0.5 855 1.6
Region 6 166 0.4 156 0.4 179 0.4 179 0.4 157 0.4
Region 7 49 0.4 48 0.3 38 0.3 58 0.4 46 0.3
Region 8 82 0.7 49 0.4 45 0.4 40 0.3 246 2.1
Region 9 356 0.7 181 0.4 250 0.5 560 1.1 1,033 2.0
Region 10 83 0.6 47 0.4 67 0.5 55 0.4 52 0.4

Source: CDC, National Notifiable Diseases Surveillance System.

* Rate per 100,000 population.

† For the case definition, see https://wwwn.cdc.gov/nndss/conditions/hepatitis-a-acute/

§ Numbers reported in each category may not add up to the total number of reported cases in a year due to cases with missing data or, in the case of race/ethnicity, cases categorized as “Other”.

¶ Health and Human Services Regions were categorized according to the grouping of states and US territories assigned under each of the ten Department of Health and Human Services regional offices (https://www.hhs.gov/about/agencies/iea/regional-offices/index.html). For the purposes of this report, regions with US territories (Region 2 and Region 9) contain data from states only.

Table 2.3. Number and rate* of deaths with hepatitis A listed as a cause of death† among US residents, by demographic characteristic and year – United States, 2013-2017.

Table 2.3.
Demographic characteristic 2013
No.		 2013 Rate
(95% CI)§		 2014
No.		 2014 Rate
(95% CI)		 2015
No.		 2015 Rate
(95% CI)		 2016
No.		 2016 Rate
(95% CI)		 2017
No.		 2017 Rate
(95% CI)
Age Group (years)
0–44 4 – 4 – 5 – 6 – 9 –
45–64 43 0.05
(0.04-0.07)		 35 0.04
(0.03-0.06)		 25 0.03
(0.02-0.04)		 33 0.04
(0.03-0.06)		 35 0.04
(0.03-0.06)
65+ 33 0.07
(0.05-0.10)		 37 0.08
(0.06-0.11)		 37 0.08
(0.05-0.11)		 31 0.06
(0.04-0.09)		 47 0.09
(0.07-0.12)
Race/ethnicity
White, non-Hispanic 63 0.02
(0.02-0.03)		 51 0.02
(0.02-0.03)		 45 0.01
(0.00-0.01)		 50 0.02
(0.01-0.02)		 69 0.02
(0.02-0.03)
Other 17 – 25 – 22 – 20 – 21 –
Sex
Male 50 0.03
(0.02-0.04)		 42 0.02
(0.01-0.03)		 38 0.02
(0.01-0.03)		 38 0.01
(0.01-0.02)		 63 0.03
(0.02-0.03)
Female 30 0.01
(0.00-0.01)		 34 0.01
(0.01-0.02)		 29 0.01
(0.00-0.01)		 32 0.01
(0.01-0.02)		 28 0.00
(0.00-0.00)
Overall 80 0.02
(0.02-0.03)		 76 0.02
(0.02-0.03)		 67 0.01
(0.01-0.02)		 70 0.01
(0.00-0.01)		 91 0.02
(0.02-0.03)

Source: CDC, National Center for Health Statistics, Multiple Cause of Death 1999–2017 on CDC WONDER Online Database. Data are from the 2013–2017 Multiple Cause of Death files and are based on information from all death certificates filed in the vital records offices of the fifty states and the District of Columbia through the Vital Statistics Cooperative Program. Deaths of nonresidents (e.g., nonresident aliens, nationals living abroad, residents of Puerto Rico, Guam, the Virgin Islands, and other territories of the US) and fetal deaths are excluded. Accessed at http://wonder.cdc.gov/mcd-icd10.html on August 23, 2019. CDC WONDER dataset documentation and technical methods can be accessed at https://wonder.cdc.gov/wonder/help/mcd.html#.

* Rates for race/ethnicity, sex, and the overall total are age-adjusted per 100,000 U.S. standard population in 2000 using the following age group distribution (in years): <1, 1–4, 5–14, 15–24, 25–34, 35–44, 45–54, 55–64, 65–74, 75–84, and 85+. Missing data are not included. Rates where death counts were less than 20 were not displayed due to the instability associated with those rates or where CDC WONDER did not have the functionality to calculate rates (e.g., for the “Other” race/ethnicity group). For age-adjusted death rates, the age-specific death rate is rounded to one decimal place before proceeding to the next step in the calculation of age-adjusted death rates for NCHS Multiple Cause of Death on CDC WONDER. This rounding step may affect the precision of rates calculated for small numbers of deaths.

† Cause of death is defined as one of the multiple causes of death and is based on the International Classification of Diseases, 10th Revision (ICD-10) codes B15 (hepatitis A).

Note: Numbers are slightly lower than previously reported for 2013–2016 due to NCHS standards which restrict displayed data to US residents.

Figure 2.1. Actual number of hepatitis A cases submitted to CDC by states and estimated* number of hepatitis A cases — United States, 2013–2017.

Bar chart for years 2013 through 2017. Y axis ranges from 0 to 8,000

 

Source: CDC, National Notifiable Diseases Surveillance System.
* The number of estimated viral hepatitis cases was determined by multiplying the number of reported cases by a factor that adjusted for under-ascertainment and under-reporting (5). Corrected multipliers and confidence intervals developed by the CDC are shown in the Appendix A. In this visual representation, the sum of reported and estimated not reported total the estimated number of acute cases.

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Figure 2.2. Rates of reported hepatitis A cases, by state compared to the 2017 overall rate of hepatitis A — United States, 2016 and 2017.

Bar chart with states listed on the Y axis with rate per 100,000 along the x axis, ranging from 0 to 10. Each state has a bar for 2016 and bar for 2017.

Source: CDC, National Notifiable Diseases Surveillance System.

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Figure 2.3. Rates of reported hepatitis A, by age group — United States, 2002–2017.

Line chart with years 2002 through 2017 along the x axis and Reported cases per 100,000 population along the Y axis, ranging from 0 to 4.5. A line for each of seven age ranges is plotted

Source: CDC, National Notifiable Diseases Surveillance System.

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Figure 2.4. Rates of reported hepatitis A, by sex — United States, 2002–2017.

Line chart with years 2002 through 2017 along the x axis and Reported cases per 100,000 population along the Y axis, ranging from 0 to 4.5. Lines for male and female are plotted

Source: CDC, National Notifiable Diseases Surveillance System.

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Figure 2.5. Rates of reported hepatitis A, by race/ethnicity — United States, 2002–2017.

Line chart with years 2002 through 2017 along the x axis and Reported cases per 100,000 population along the Y axis, ranging from 0 to 54.5. Lines for 5 different race/ethnicity groups are plotted

Source: CDC, National Notifiable Diseases Surveillance System.

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Figure 2.6. Availability of information on risk behaviors/exposures* associated with reported cases of hepatitis A — United States, 2017.

Pie chart with three sections: Risk identified=21.9%26#37;, No risk identified=31.5%26#37;, and Risk data missing=46.6%26#37;

Source: CDC, National Notifiable Diseases Surveillance System.

* Includes case reports indicating the presence of at least one of the following risks 2–6 weeks prior to onset of symptomatic hepatitis A: 1) traveled to hepatitis A-endemic regions of Mexico, South/Central America, Africa, Asia/South Pacific, or the Middle East; 2) sexual/household or other contact with suspected/confirmed hepatitis A patient; 3) a child/employee in day-care center/nursery/preschool or having had contact with such persons; 4) involved in a foodborne/waterborne outbreak; 5) being a man who has sex with men; and 6) injection drug use.

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Figure 2.7. Reported cases of hepatitis A*, by risk behavior/exposure† — United States, 2017.

Bar chart with risk behavior/exposure groups listed on the Y axis and Reported cases, ranging from 0 to 3,000, along the X axis.

Source: CDC, National Notifiable Diseases Surveillance System.
* A total of 3,366 case reports of hepatitis A were received in 2017.
† More than one risk behavior/exposure may be indicated on each case report.
§ No risk data reported.
¶ Associated with person-to-person or foodborne outbreak.
** A total of 2,209 hepatitis A cases were reported among males in 2017.

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