2009 New York State Acute Hepatitis A Surveillance Summary
Cases Reported January 1, 2009 through December 31, 20091
Acute Hepatitis A
- Number of confirmed cases2: 48
- NYS rate per 100,000 population: 0.433
- U.S. rate per 100,000 population4: 1.0
Cases by Age
Age (years) |
N |
% |
≤1 |
0 |
0.0 |
2-5 |
2 |
4.2 |
6-10 |
1 |
2.1 |
11-20 |
8 |
16.7 |
21-30 |
12 |
25.0 |
31-40 |
5 |
10.4 |
41-50 |
3 |
6.3 |
50+ |
17 |
35.4 |
Mean Age |
38.7 |
Cases by Gender
Gender |
N |
% |
Male |
26 |
54.2 |
Female |
22 |
45.8 |
Cases by Race
Race |
N |
% |
White |
21 |
43.8 |
Black |
1 |
2.1 |
Alaskan Native/America Indian |
0 |
0.0 |
Asian/Pacific Islander |
7 |
14.6 |
Other |
6 |
12.5 |
Unknown |
13 |
27.1 |
Cases by Ethnicity
Ethnicity |
N |
% |
Non-Hispanic |
30 |
62.5 |
Hispanic |
11 |
22.9 |
Unknown |
7 |
14.6 |
Reported Cases by County5
County |
Reported Cases |
Albany |
2 |
Broome |
2 |
Clinton |
1 |
Delaware |
1 |
Erie |
3 |
Fulton |
1 |
Monroe |
1 |
Nassau |
8 |
Onondaga |
1 |
Orange |
3 |
Oswego |
1 |
Putnam |
1 |
Rensselaer |
1 |
Rockland |
3 |
Suffolk |
10 |
Ulster |
2 |
Westchester |
6 |
Yates |
1 |
Footnotes
- Represents cases reported to the NYSDOH by local health departments during 2009, excluding New York City.
- Confirmed Case Definition (based on national surveillance guidelines)
- A discrete onset of symptoms,
- Jaundice or elevated liver enzymes, and
- IgM anti-HAV positive test result
- Confirmed cases also include patients who meet the clinical criteria and are epidemiologically linked to a laboratory confirmed case (i.e., household or sexual contact with an infected person during the 15-50 days prior to onset of symptoms).
- Source: Census.gov 2009 State Population Estimates
- Source: Centers for Disease Control and Prevention, MMWR Vol. 58 No. SS-3
- Includes only counties that reported at least one case of acute hepatitis A in 2009
Note: Percentages may not equal 100 due to rounding
For more information, or if you have questions about this summary report, please contact the Bureau of Communicable Disease Control at (518) 473-4439 or email hepatabc@health.state.ny.us.
New York State Confirmed Hepatitis A Cases Reported 2002-20091
Years |
Cases |
2002 |
188 |
2003 |
146 |
2004 |
1172 |
2005 |
112 |
2006 |
1023 |
2007 |
794 |
2008 |
66 |
2009 |
48 |
Footnotes
- Excludes New York City
- New York State introduced enhanced surveillance in 34 counties across the state
- ACIP recommends all children aged 12-23 months be vaccinated
- ACIP post-exposure prophylaxis recommendations revised - persons aged 2-40 receive vaccince instead of immunoglobulin
Number and percent* of cases with confirmed acute hepatitis A who reported selected epidemiologic risks by age group - New York State 2009
Risk Factors for Infection† |
Age Group (Years) |
N |
% |
N |
% |
N |
% |
N |
% |
N |
% |
N |
% |
N |
% |
N |
% |
N |
% |
Close contact of a case1 |
0 |
N/A |
1/1 |
100.0 |
0/0 |
0.0 |
0/1 |
0.0 |
0/2 |
0.0 |
0/2 |
0.0 |
0/2 |
0.0 |
0/2 |
0.0 |
1/10 |
10.0 |
International Travel2 |
0 |
N/A |
1/2 |
50.0 |
1/1 |
100.0 |
3/7 |
42.9 |
9/12 |
75.0 |
3/5 |
60.0 |
0/3 |
0.0 |
6/17 |
35.3 |
23/47 |
48.9 |
Homosexual male |
0 |
N/A |
0/1 |
0.0 |
0/1 |
0.0 |
0/4 |
0.0 |
0/9 |
0.0 |
1/2 |
50.0 |
0/0 |
0.0 |
0/7 |
0.0 |
1/24 |
4.2 |
Injection drug use |
0 |
N/A |
0/2 |
0.0 |
0/0 |
0.0 |
3/7 |
14.3 |
0/12 |
0.0 |
1/5 |
20.0 |
0/3 |
0.0 |
0/17 |
0.0 |
2/44 |
4.5 |
Day Care Contact3 |
0 |
N/A |
0/2 |
0.0 |
0/1 |
0.0 |
0/7 |
0.0 |
0/12 |
0.0 |
0/4 |
0.0 |
0/3 |
0.0 |
2/17 |
11.8 |
2/46 |
4.3 |
Food or waterborne outbreak |
0 |
N/A |
0/2 |
0.0 |
0/1 |
0.0 |
0/6 |
0.0 |
0/11 |
0.0 |
0/4 |
0.0 |
0/3 |
0.0 |
0/16 |
0.0 |
0/40 |
0.0 |
Ate raw shellfish |
0 |
N/A |
0/2 |
0.0 |
0/1 |
0.0 |
0/6 |
0.0 |
3/10 |
30.0 |
0/3 |
0.0 |
0/3 |
0.0 |
2/17 |
11.8 |
5/42 |
11.9 |
Other4 |
0 |
N/A |
0/2 |
0.0 |
0/0 |
0.0 |
0/6 |
0.0 |
0/12 |
0.0 |
1/3 |
33.3 |
0/3 |
0.0 |
0/16 |
0.0 |
1/42 |
2.4 |
No reported risks5 |
0 |
N/A |
1/2 |
50.0 |
0/1 |
0.0 |
4/8 |
50.0 |
3/12 |
25.0 |
2/5 |
40.0 |
3/3 |
100.0 |
9/17 |
52.9 |
22/48 |
45.8 |
Total number of cases |
0 |
0 |
2 |
4.2 |
1 |
2.1 |
8 |
16.7 |
12 |
25 |
5 |
10.4 |
3 |
6.3 |
17 |
35.4 |
48 |
100 |
*The percentage of cases for which a specific risk factor was reported was calculated on the basis of the total number of cases for which any information for that exposure was reported. Percentages might not total 100% because multiple risk factors might have been reported for a single case.
†Exposures that occurred during the 2–6 weeks before onset of illness.
Footnotes
- Household and sexual contact of a case, babysitter or playmate of a case, or other type of close contact of a case.
- Includes persons living in the case's household who traveled in the 3 months prior to case's onset of illness.
- Works in a day care setting, has child in day care, or is a close contact of a child or employee in day care.
- Other includes street drug use and multiple sex partners (heterosexual).
- Other includes street drug use and multiple sex partners (heterosexual).
International Travel – Countries Visited by Hepatitis A Cases in the 2-6 Weeks Prior to Onset of Symptoms – New York State 2009
Country |
N |
% |
India |
2 |
8.7 |
Mexico, Central and South America |
13 |
56.5 |
Europe |
2 |
8.7 |
Caribbean |
2 |
8.7 |
Africa |
2 |
8.7 |
Unknown |
2 |
8.7 |
Total |
23 |
100.0 |