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. 2020 Mar 13;395(10230):1137–1144. doi: 10.1016/S0140-6736(20)30607-3

Table 2.

Actively monitored contacts and PUIs owing to contact with a patient with COVID-19, Illinois, USA, 2020

Since first reported date of symptom onset
On or after date of first positive specimen
Total contacts Did not become a PUI Met PUI criteria* PUIs positive for COVID-19 Total contacts Did not become a PUI Met PUI criteria* PUIs positive for COVID-19
Community contacts
High risk 1 0 1 1/1 1 0 1 1/1
Medium high 7 5 2 0/2 1 1 0 ··
Medium 28 24 4 0/4 0 0 0 ··
Low 116 111 5 0/5 65 61 4 0/4
Total 152 140 12 1/12 67 62 5 1/5
Health-care personnel contacts
High risk 32 28 4 0/4 22 20 2 0/2
Medium high 39 30 9 0/9 29 24 5 0/5
Medium 12 6 6 0/6 9 5 4 0/4
Low 112 99 13 0/13 95 84 11 0/11
Total 195 163 32 0/32 155 133 22 0/22
Total contacts 347 303 44 1 222 195 27 1

Data are n or n/N. PUI=person under investigation. COVID-19=coronavirus disease 2019.

*

US Centers for Disease Control and Prevention PUI criteria for contacts of a confirmed case: fever (subjective or objective) or signs or symptoms of lower respiratory illness (eg, cough or shortness of breath).

PUIs were tested for COVID-19 using real-time RT-PCR for severe acute respiratory syndrome coronavirus 2. Only results from PUIs tested for COVID-19 in this investigation are presented here.

The index patient, Patient 1, is excluded from this total