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Background: COVID-19 care home outbreaks represent a significant proportion of COVID-19 morbidity and mortality in the UK. National testing initially focused on symptomatic care home residents, before extending to asymptomatic cohorts.Aim: The aim was to describe the epidemiology and transmission of COVID-19 in outbreak free care homes.Methods: A two-point prevalence survey of COVID-19, in 34 Liverpool care homes, was performed in April and May 2020. Changes in prevalence were analysed. Associations between care home characteristics, reported infection, prevention and control interventions, and COVID-19 status were described and analysed.Findings: No resident developed COVID-19 symptoms during the study. There was no significant difference between: the number of care homes containing at least one test positive resident between the first (17.6%, 95% confidence interval (CI) 6.8-34.5) and second round (14.7%, 95% CI 5.0-31.1) of testing (p>0.99); and the number of residents testing positive between the first (2.1%, 95% CI 1.2-3.4) and second round (1.0%, 95% CI 0.5-2.1) of testing (P=0.11). Care homes providing nursing care (risk ratio (RR) 7.99, 95% CI 1.1-57.3) and employing agency staff (RR 8.4, 95% CI 1.2-60.8) were more likely to contain test positive residents. Closing residents shared space was not associated with residents testing positive (RR 2.63, 95% CI 0.4-18.5).Conclusions: Asymptomatic COVID-19 care homes showed no evidence of disease transmission or development of outbreaks; suggesting that current infection prevention and control measures are effective in preventing transmission. Repeat testing at two to three weeks had limited or no public health benefits over regular daily monitoring of staff and residents for symptoms. These results should inform policies calling for regular testing of asymptomatic residents. [ABSTRACT FROM AUTHOR]

Background: COVID-19 placed a significant burden on the care home population during the first wave. Care Quality Commission's care quality ratings are given to all English care homes and could be used to identify whether care homes are at risk of COVID-19 outbreaks.Methods: An audit was performed, April 2020, of Liverpool care homes to identify associations between COVID-19 status and care quality ratings from the Care Quality Commission. Univariable logistic regression was performed to identify whether the Care Quality Commissions ratings were associated with a care home experiencing a COVID-19 outbreak, or a home having asymptomatic cases.Findings: Over half of the care homes (53.2%, n=41), had laboratory-confirmed clinical cases and 39 (95.1%) of these were reported as outbreaks. A small number of care homes (10.4%, n=8) had asymptomatic cases and over a third had no clinical or asymptomatic cases (36.4%, n=28). There was no significant difference between the overall Care Quality Commission rating of Liverpool and English care homes (p=0.57). There was no significant association between any of the Care Quality Commission rating domains and the presence of COVID-19 outbreaks and/or asymptomatic cases.Conclusions: During the first wave of the COVID-19 pandemic, Care Quality Commission ratings were not associated with COVID-19 outbreaks or asymptomatic cases in care homes. Infection prevention and control components of Care Quality Commission ratings need to be strengthened to identify care homes at a potential risk of infectious disease outbreaks that may require targeted support. Further large-scale studies will be required to test the findings from this study. [ABSTRACT FROM AUTHOR]