TABLE 2

Monitoring of Procedures and HCWs’ SARS-CoV-2 Infections

Baseline Evaluation, n (%)First mo, n (%)Second mo, n (%)Third mo, n (%)Fourth mo, n (%)Fifth mo, n (%)Total
HCWs’ exposure
 Total children14 (7.3)20 (10.5)22 (11.5)67 (35.1)68 (35.6)191a
 Hospitalized children10 (37)6 (22.2)2 (7.4)2 (7.4)7 (26)27a
 Triaged children4 (2.4)14 (8.5)20 (12.2)65 (39.6)61 (37.2)164
 Children wearing mask6 (4.3)15 (10.9)15 (10.9)55 (39.9)47 (34.1)138b
 Caregivers of admitted patients with positive results2 (22.2)1 (11.1)0 (0)2 (22.2)4 (44.5)9a
 Caregivers wearing a mask14 (7.4)20 (10.6)20 (10.6)67 (35.6)67 (35.6)188a
 Cumulative hours of exposure116.8 (27.4)195.7 (46)7.4 (1.7)15.7 (3.7)90 (21.1)425.6
 Cumulative No. procedures259 (28.2)241 (26.2)59 (6.4)129 (14.0)232 (25.2)920
 Aerosol-producing procedures47 (15.6)55 (18.2)44 (14.6)72 (23.8)84 (27.8)302
 Medical visits90 (29.3)83 (27)5 (1.6)47 (15.3)82 (26.8)307
 Issues with PPE8 (47.1)5 (29.4)0 (0)0 (0)4 (23.5)17
 Issues with undressing procedures16 (69.5)4 (17.5)0 (0)0 (0)3 (13)23
SARS-CoV-2 infection monitoring of 23 HCWsc
 HCW with SARS-CoV-2 symptoms0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0
 HCW with positive IgM rapid test result (LIFA)d0 (0)0 (0)0 (0)0 (0)0 (0)0
 HCW with positive IgG rapid test result (LIFA)2 (8.6)2 (8.6)2 (8.6)2 (8.6)2 (8.6)2
 HCW with positive IgM serology test result (CLIA)e0 (0)0 (0)0 (0)0
 HCW with positive IgG serology test result (CLIA)1 (4.3)2 (8.6)2 (8.6)2
 HCW with positive RT-PCR test result on nasopharyngeal swab0 (0)0 (0)0
Health care–associated SARS-CoV-2 infection0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0
  • RT-PCR, reverse transcriptase-polymerase chain reaction; —, not applicable.

  • a The sum of single cells is higher or lower than the total because some patients and caregivers had hospitalization longer than 1 wk.

  • b Seven children aged <2 y did not tolerate masks.

  • c Percentages were calculated on the total of HCWs monitored during the study.

  • d LIFA manufacture label (Screen Test COVID; Screen Italia Srl, Torgiano, Italy) declared sensitivity of 85% (IgM) and 100% (IgG) and specificity of 96% (IgM) and 98% (IgG).

  • e CLIA IgM (Snibe Diagnostic) sensitivity of 79% and specificity of 97.5 and CLIA IgG (Abbott, Abbott Park, IL) at 14 d of infection sensitivity of 100% and specificity of 99.6%.