Among asymptomatic people who had household exposure to COVID-19 and had negative laboratory test results for 7 days after the index patient\u2019s symptom onset, 19% experienced symptoms or received positive test results in the following week. The probability that an asymptomatic household contact with negative test results through day 7 would remain asymptomatic and test negative for 14 days after the index patient\u2019s illness onset was 81%, and the probability increased to 93% if the household contact remained asymptomatic with negative test results through day 10. The authors suggest that quarantines shorter than 14 days may pose some risk of onward transmission.<\/p>\n
Rolfes et al. (Jan 1, 2021). Implications of Shortened Quarantine Among Household Contacts of Index Patients with Confirmed SARS-CoV-2 Infection \u2014 Tennessee and Wisconsin, April\u2013September 2020. MMWR. <\/i>https:\/\/doi.org\/10.15585\/mmwr.mm695152a1<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Among asymptomatic people who had household exposure to COVID-19 and had negative laboratory test results for 7 days after the index patient\u2019s symptom onset, 19% experienced symptoms or received positive test results in the following week. The probability that an asymptomatic household contact with negative test results through day 7 would remain asymptomatic and test…<\/p>\n