There is some onward transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from household contacts released from quarantine after seven or 10 days, according to research published in the Jan. 1 issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report.
Melissa A. Rolfes, Ph.D., from the CDC COVID-19 Response Team, and colleagues analyzed interim data from an ongoing study of household transmission of SARS-CoV-2 to examine the proportion of household contacts who had detectable virus after a shortened quarantine period. For 14 days, household contacts of index patients completed a daily symptom diary and self-collected respiratory specimens, which were tested for SARS-CoV-2.
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