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Table 1 Questionnaire response and rectal swab sampling in healthcare workers during nosocomial outbreaks of norovirus in seven hospital wards: compliance and real-time detection of norovirus genogroup II

From: Risk factors for norovirus infection in healthcare workers during nosocomial outbreaks: a cross-sectional study

Hospital ward Return of questionnaires and rectal swabs among health care workers
Buil-
ding
Ward Floor Care
unit
Packs
issu-edb
Packs
returned
(%)
Response
Timec
Range (median)
NoV
GIIa
Positive
(%)
NoV GIIa
Ctd range
(median)
A A1 5th Haematologye 41 19 (46%) 6–33 (18) 0 “– “
A A2 5th Medicinee 30 15 (50%) 5–21 (8) 0 “–“
B B1 7th Geriatric medicine 58 22 (38%( 2–28 (6) 1 (4.5%) 37
B B2 6th Geriatric
orthopedy
52 26 (50%)f 7–13 (7.5) 9 (35%) 25–35
(28)
B B3 6th Geriatric
medicine
48 16 (33%) 9–20 (11.5) 1 (6.3%) 35
C C1 6th Dementia 51 14 (27%) 6–11 (7) 7 (50%) 23–31
(30)
C C2 4th Substance
abuse and
dementia
28 17 (61%) 6–14 (8) 8 (47%) 22–34
(30)
All     308 129 (42%) 2–33 (8) 26 (20%) 22–37
(30)
  1. aNoV GII: Norovirus genogroup II detection in real-time RT-PCR assays for NoV GI, GII, adenovirus, astrovirus, rotavirus, and sapovirus
  2. bSample packs: Q and swab for rectal sampling
  3. cResponse time: days taken to return sample packs containing completed Q for statistical analyses, and RS for viral analysis
  4. dCt: cycle threshold value in NoV GII specific real-time RT-PCR assay, the lower the Ct value the higher the viral load
  5. eInterconnected wards: shared dining-room and shower facilities
  6. fTwo HCWs returned incomplete packs, these workers were excluded from the study