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. 2021 Jul 20;215(6):273–278. doi: 10.5694/mja2.51188
Characteristic SARS‐CoV‐2 test result Positive results, by specimen type
Participants Not detected Detected

Saliva

and swab

Saliva only Swab only
Number of participants 1050 996 (95%) 54 (5%) 19 (35%) 20 (37%) 15 (28%)
Laboratory site
Royal Children’s Hospital 301 (29%) 261 (87%) 40 (13%) 11 (28%) 17 (43%) 12 (30%)
Primary care sites 749 (71%) 735 (98%) 14 (2%) 8 (57%) 3 (21%) 3 (21%)
Fixed site 575 (77%) 563 (98%) 12 (2%) 7 (58%) 2 (17%) 3 (25%)
Drive‐through 174 (23%) 172 (99%) 2 (1%) 1 (50%) 1 (50%) 0
Age group (years)
< 5 129 (12%) 114 (88%) 15 (12%) 2 (13%) 5 (33%) 8 (53%)
5–9 47 (5%) 43 (92%) 4 (9%) 0 2 (50%) 2 (50%)
10–17 36 (3%) 34 (94%) 2 (6%) 0 1 (50%) 1 (50%)
≥ 18 838 (80%) 805 (96%) 33 (4%) 17 (52%) 12 (36%) 4 (12%)
Sex
Male 375 (36%) 345 (92%) 30 (8%) 12 (40%) 9 (30%) 9 (30%)
Female 432 (41%) 412 (95%) 20 (5%) 4 (20%) 10 (50%) 6 (30%)
Unknown 243 (23%) 239 (98%) 4 (2%) 3 (75%) 1 (25%) 0
Risk factors (N = 298*)
Close contact 168 (56%) 146 (87%) 22 (13%) 3 (14%) 10 (46%) 9 (41%)
Health care worker in household 12 (4%) 9 (75%) 3 (25%) 0 2 (67%) 1 (33%)
Recent positive test 22 (7%) 12 (55%) 10 (46%) 6 (60%) 1 (10%) 3 (30%)
No identified risk factor 107 (36%) 101 (94%) 6 (6%) 0 6 (100%) 0
Symptoms (N = 465)
No 199 (43%) 180 (91%) 19 (10%) 1 (5%) 9 (47%) 9 (47%)
Yes (any) 266 (57%) 247 (93%) 19 (7%) 8 (42%) 8 (42%) 3 (16%)
Sore throat 107 (23%) 101 (94%) 6 (6%) 3 (50%) 2 (33%) 1 (17%)
Cough 103 (22%) 94 (91%) 9 (9%) 6 (67%) 2 (22%) 1 (11%)
Fatigue 55 (12%) 51 (93%) 4 (7%) 1 (25%) 2 (50%) 1 (25%)
Fever 53 (11%) 47 (89%) 6 (11%) 3 (50%) 2 (33%) 1 (17%)
Runny nose (N = 298) 93 (31%) 88 (95%) 5 (5%) 2 (40%) 3 (60%) 0
Headache (N = 298‡) 30 (10%) 26 (87%) 4 (13%) 3 (75%) 1 (25%) 0
*

 Royal Children’s Hospital participants assessed only, none of whom reported recent international travel.

 Less frequent symptoms: myalgia, 31 (6%); diarrhoea, 15 (3%); dyspnoea, 12 (2%); anosmia, four (1%); confusion, three (1%); dysgeusia, two (< 0.1%).

 Royal Children’s Hospital participants assessed only.