A modeling study found that a shortened quarantine period combined with RT-PCR and antigen testing among SARS-CoV-2 exposed contacts could avert as much transmission as a 14-day quarantine period. In the baseline scenario where 67% of index cases adhere to self-isolation and 50% of exposed contacts adhere to quarantine, a 14-day quarantine period was estimated to reduce transmission by 59%. In the test case scenario with the same assumptions, a 7-day quarantine with a negative RT-PCR test or a negative antigen test on day 7 was estimated to reduce transmission by 54% and 50%, respectively. A 5-day quarantine with daily antigen testing with consistently negative test results could also reduce transmission by 50%. Further reduction in transmission can be gained by stricter adherence to isolation and quarantine measures.<\/p>\n
Quilty et al. (Jan 20, 2021). Quarantine and Testing Strategies in Contact Tracing for SARS-CoV-2: A Modelling Study. The Lancet Public Health. <\/i>https:\/\/www.thelancet.com\/journals\/lanpub\/article\/PIIS2468-2667(20)30308-X\/fulltext#%20<\/a>\u00a0<\/span><\/i><\/p>\n","protected":false},"excerpt":{"rendered":" A modeling study found that a shortened quarantine period combined with RT-PCR and antigen testing among SARS-CoV-2 exposed contacts could avert as much transmission as a 14-day quarantine period. In the baseline scenario where 67% of index cases adhere to self-isolation and 50% of exposed contacts adhere to quarantine, a 14-day quarantine period was estimated…<\/p>\n