Volume 21, Number 7—July 2015
CME ACTIVITY - Research
Parechovirus Genotype 3 Outbreak among Infants, New South Wales, Australia, 2013–2014
, Ameneh Khatami, Brendan J. McMullan, Jennie Musto, Kit Leung, Oanh Nguyen, Mark J. Ferson, Georgina Papadakis, and Vicky Sheppeard
Table 3
Characteristics of patients with laboratory-confirmed HPeV detected by active surveillance, New South Wales, Australia, October 1, 2013–February 2, 2014*
| <3 mo | >3 mo | All ages | ||
|---|---|---|---|---|
| Total | 183 (100) | 94 (87) | 14 (13) | 108 (100) |
| Sex | ||||
| F | 78 (43) | 45 (48) | 6 (43) | 51 (47) |
| M | 105 (57) | 49 (52) | 8 (57) | 57 (53) |
| Admitted to ward | NA | 89 (95) | 14 (100) | 103 (95) |
| Length of stay, days | ||||
| Minimum | NA | 1 | 1 | 1 |
| Maximum | NA | 13 | 11 | 13 |
| Mean | NA | 4.5 | 3.7 | 4.4 |
| Admitted to ICU | NA | 28 (30) | 2 (14) | 30 (28) |
| Clinical features | ||||
| Fever | NA | 81 (86) | 9 (64) | 90 (83) |
| Irritability/pain | NA | 75 (80) | 11 (79) | 86 (80) |
| Diarrhea/loose stool | NA | 29 (31) | 2 (14) | 31 (29) |
| Tachypnea | NA | 26 (28) | 3 (21) | 29 (27) |
| Tachycardia | NA | 64 (68) | 7 (50) | 71 (66) |
| Hepatitis | NA | 9 (10) | 1 (7) | 10 (9) |
| Rash | NA | 58 (62) | 9 (64) | 67 (62) |
| Encephalitis | NA | 7 (7) | 0 (0) | 7 (6) |
| Myoclonic jerks | NA | 4 (4) | 1 (7) | 5 (5) |
*Table source: NSW Notifiable Conditions Information Management System data (http://www.health.nsw.au/epidemiology/Pages/Notifiable-diseases.aspx), February 18, 2014. HPeV, human parechovirus; ICU, intensive care unit; NA, not available; NSW, New South Wales; VIDRL, Victorian Infectious Disease Reference Laboratory, Melbourne, Victoria, Australia.
†Passive laboratory surveillance ceased at NSW Health on February 2, 2014, leaving at a total of 183 laboratory-confirmed HPeV cases. This number differs from the total of 198 confirmed HPeV cases reported by VIDRL surveillance, which continued through to February 28, 2014, and identified another 15 cases.
‡Sentinel surveillance sites collected additional demographic, hospital, and clinical data onto the HPeV case investigation forms, which were entered into the NSW Notifiable Conditions Information Management System. No information on hospital stay and clinical features was available for cases identified by laboratory-only surveillance. Surveillance at sentinel sites is a subset (59%) of the outbreak total of 183 laboratory-confirmed cases.
1Current affiliation: Independent consultant, Freshwater, New South Wales, Australia