Intrahousehold transmission of pandemic (H1N1) 2009 virus, Victoria, Australia

van Gemert, Caroline, Hellard, Margaret, McBryde, Emma S., Fielding, James, Spelman, Tim, Higgins, Nasra, Lester, Rosemary, Vally, Hassan, and Bergeri, Isabel (2011) Intrahousehold transmission of pandemic (H1N1) 2009 virus, Victoria, Australia. Emerging Infectious Diseases, 17 (9). pp. 1599-1607.

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View at Publisher Website: http://dx.doi.org/10.3201/eid1709.101948
 
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Abstract

To examine intrahousehold secondary transmission of pandemic (H1N1) 2009 virus in households in Victoria, Australia, we conducted a retrospective cross-sectional study in late 2009. We randomly selected case-patients reported during May–June 2009 and their household contacts. Information collected included household characteristics, use of prevention and control measures, and signs and symptoms. Secondary cases were defined as influenza-like illness in household contacts within the specified period. Secondary transmission was identified for 18 of 122 susceptible household contacts. To identify independent predictors of secondary transmission, we developed a model. Risk factors were concurrent quarantine with the household index case-patient, and a protective factor was antiviral prophylaxis. These findings show that timely provision of antiviral prophylaxis to household contacts, particularly when household members are concurrently quarantined during implementation of pandemic management strategies, delays or contains community transmission of pandemic (H1N1) 2009 virus.

Item ID: 39761
Item Type: Article (Research - C1)
ISSN: 1080-6059
Funders: National Health and Medical Research Council of Australia (NHMRC)
Projects and Grants: NRMRC Grant 603753
Date Deposited: 08 Oct 2015 04:23
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1103 Clinical Sciences > 110309 Infectious Diseases @ 40%
11 MEDICAL AND HEALTH SCIENCES > 1117 Public Health and Health Services > 111706 Epidemiology @ 40%
16 STUDIES IN HUMAN SOCIETY > 1605 Policy and Administration > 160508 Health Policy @ 20%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920109 Infectious Diseases @ 50%
92 HEALTH > 9202 Health and Support Services > 920207 Health Policy Evaluation @ 50%
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