ArticleAustralian and New Zealand journal of public health2022
Infection control behaviours, intra-household transmission and quarantine duration: a retrospective cohort analysis of COVID-19 cases.
Article in Australian and New Zealand journal of public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
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Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Infection prevention and control knowledge, attitudes, and practices among patients and informal caregivers in home-based care: A systematic review.American journal of infection control · 2026Pooled it
- COVID-19 (Omicron strain) hospital admissions from a virtual ward - who required further care?Influenza and other respiratory viruses · 2023Observational
- Risk of SARS-CoV-2 transmission in the close contacts in a small rural area in the Veneto Region (NE-Italy): past evidence for future scenarios.Frontiers in public health · 2023Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo study COVID-19 (Delta Variant) cases and close contacts co-located within households. Focusing on epidemiology of transmission of COVID-19, quarantine duration and utilisation of infection control behaviours under a telehealth model of care in an elimination setting.
methodsA retrospective cohort analysis examined household spread of infection, duration of quarantine and change in PCR CT value during illness. A survey explored infection control behaviours used by household members during isolation and quarantine.
resultsThe cohort was 141 individuals in 35 households. Thirty-seven were index cases, and 48 became positive during quarantine, most within 10 days. Whole-household infection occurred in 12 households with multiple members. Behaviours focused on fomite transmission reduction rather than preventing aerosol transmission. The median duration of close contact household quarantine was 25 days. The majority of COVID-19 cases were de-isolated after 14 days with no evidence of further community transmission.
conclusionIntrahousehold transmission was not universal and, if it occurred, usually occurred quickly. Behaviours utilised focused on fomites, suggesting a need for improved education regarding the potential utilisation of strategies to prevention the transmission of aerosols. Households experienced long durations of home-based quarantine. IMPLICATIONS FOR PUBLIC HEALTH: The impact of long quarantine durations must be considered, particularly where most community benefit from quarantine is achieved within 10 days from exposure in the setting of the Delta Variant. Education of households regarding aerosol risk reduction is a potential strategy in the household setting of individuals at risk of disease progression.
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