tetano
Editor, Senior Moderator
Clinical Infectious Diseases
Transmission of 2009 Pandemic Influenza A (H1N1) at a Public University?Delaware, April?May 2009
1. Alice Guh1,2,3,
2. Carrie Reed1,2,4,
3. L. Hannah Gould5,
4. Preeta Kutty6,
5. Danielle Iuliano1,2,7,
6. Tarissa Mitchell1,2,8,
7. Deborah Dee1,2,9,
8. Mitesh Desai1,2,10,
9. Joseph Siebold11,
10. Paul Silverman12,
11. Mehran Massoudi2,
12. Michael Lynch13,
13. Mark Sotir5,
14. Gregory Armstrong6, and
15. David Swerdlow5
+ Author Affiliations
1.
1Epidemic Intelligence Office
2.
2Scientific Education and Professional Development Program Office (proposed), Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
3.
3Connecticut State Department of Public Health, Hartford, Connecticut
4.
4Influenza Division
5.
5Division of Foodborne, Bacterial, and Mycotic Diseases
6.
6Division of Viral Diseases
7.
7Division of HIV/AIDS Prevention
8.
8Division of Global Migration and Quarantine
9.
9Division of Nutrition, Physical Activity, and Obesity
10.
10Division of Tuberculosis Elimination, CDC, Atlanta, Georgia
11.
11Student Health Services, University of Delaware, Newark
12.
12Delaware Health and Social Services, Division of Public Health, Dover, Delaware
13.
13Division of Parasitic Diseases, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
1. Correspondence: Alice Guh, M.D., MPH, 1600 Clifton Rd NE, MS A-31, Atlanta, GA 30329 (ggt4@cdc.gov).
Abstract
We investigated the first documented university outbreak of the 2009 pandemic influenza A(H1N1) to identify factors associated with disease transmission. An online student survey was administered to assess risk factors for influenza-like illness (ILI), defined as fever with cough or sore throat. Of 6049 survey respondents, 567 (9%) experienced ILI during 27 March to 9 May 2009. Studying with an ill contact (adjusted risk ratios [aRR], 1.29; 95% confidence intervals [CI], 1.01-1.65) and caring for an ill contact (aRR, 1.51; CI, 1.14-2.01) any time during 27 March to 9 May were predictors for ILI. Respondents reported that 680 (6%) of 11,411 housemates were ill; living with an ill housemate was a predictor for ILI (RR, 1.38; CI, 1.04-1.83). Close contact or prolonged exposures to ill persons were likely associated with experiencing ILI. Self-protective measures should be promoted in university populations to mitigate transmission.
http://cid.oxfordjournals.org/content/52/suppl_1/S131.full
Transmission of 2009 Pandemic Influenza A (H1N1) at a Public University?Delaware, April?May 2009
1. Alice Guh1,2,3,
2. Carrie Reed1,2,4,
3. L. Hannah Gould5,
4. Preeta Kutty6,
5. Danielle Iuliano1,2,7,
6. Tarissa Mitchell1,2,8,
7. Deborah Dee1,2,9,
8. Mitesh Desai1,2,10,
9. Joseph Siebold11,
10. Paul Silverman12,
11. Mehran Massoudi2,
12. Michael Lynch13,
13. Mark Sotir5,
14. Gregory Armstrong6, and
15. David Swerdlow5
+ Author Affiliations
1.
1Epidemic Intelligence Office
2.
2Scientific Education and Professional Development Program Office (proposed), Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
3.
3Connecticut State Department of Public Health, Hartford, Connecticut
4.
4Influenza Division
5.
5Division of Foodborne, Bacterial, and Mycotic Diseases
6.
6Division of Viral Diseases
7.
7Division of HIV/AIDS Prevention
8.
8Division of Global Migration and Quarantine
9.
9Division of Nutrition, Physical Activity, and Obesity
10.
10Division of Tuberculosis Elimination, CDC, Atlanta, Georgia
11.
11Student Health Services, University of Delaware, Newark
12.
12Delaware Health and Social Services, Division of Public Health, Dover, Delaware
13.
13Division of Parasitic Diseases, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
1. Correspondence: Alice Guh, M.D., MPH, 1600 Clifton Rd NE, MS A-31, Atlanta, GA 30329 (ggt4@cdc.gov).
Abstract
We investigated the first documented university outbreak of the 2009 pandemic influenza A(H1N1) to identify factors associated with disease transmission. An online student survey was administered to assess risk factors for influenza-like illness (ILI), defined as fever with cough or sore throat. Of 6049 survey respondents, 567 (9%) experienced ILI during 27 March to 9 May 2009. Studying with an ill contact (adjusted risk ratios [aRR], 1.29; 95% confidence intervals [CI], 1.01-1.65) and caring for an ill contact (aRR, 1.51; CI, 1.14-2.01) any time during 27 March to 9 May were predictors for ILI. Respondents reported that 680 (6%) of 11,411 housemates were ill; living with an ill housemate was a predictor for ILI (RR, 1.38; CI, 1.04-1.83). Close contact or prolonged exposures to ill persons were likely associated with experiencing ILI. Self-protective measures should be promoted in university populations to mitigate transmission.
http://cid.oxfordjournals.org/content/52/suppl_1/S131.full