Volume 20, Number 6—June 2014
Dispatch
Gastroenteritis Outbreaks Caused by a DS-1–like G1P[8] Rotavirus Strain, Japan, 2012–2013
Seiji P. Yamamoto
, Atsushi Kaida, Hideyuki Kubo, and Nobuhiro Iritani
, Atsushi Kaida, Hideyuki Kubo, and Nobuhiro Iritani
Table 1
Description of RVA–associated outbreaks in Osaka City, Japan, during 2009–2013*
| Outbreak year, month | Outbreak no. | No. patients | No. specimens collected/no. positive for RVA | RVA genotype |
|---|---|---|---|---|
| 2009 | ||||
| April |
HC09022 |
24 |
6 (2) |
G9-P[8]-I1 |
| 2010 | ||||
| April | HC10032† | 19 | 1 (1) | G1-P[8]-I1 |
| December |
HC10062 |
Unknown |
2 (2) |
G2-P[4]-I2 |
| 2011 | ||||
| April | HC11027 | 20 | 3 (2) | G1-P[8]-I1 |
| May |
HC11030 |
18 |
3 (2) |
G9-P[8]-I1 |
| 2012 | ||||
| March | HC12010 | 18 | 3 (3) | G1-P[8]-I1 |
| April | HC12012 | 26 | 5 (3) | G1-P[8]-I2 |
| April | HC12013 | 41 | 5 (2) | G1-P[8]-I2 |
| April | HC12014† | 15 | 5 (1) | G9-P[8]-I1 |
| April | HC12016† | 18 | 3 (1) | G1-P[8]-I2 |
| April | HC12018† | 23 | 3 (1) | G1-P[8]-I2 |
| April | HC12020 | 32 | 2 (2) | G1-P[8]-I2 |
| May | HC12021 | 29 | 3 (2) | G1-P[8]-I1 |
| May |
HC12022 |
18 |
2 (2) |
G1-P[8]-I2 |
| 2013 | ||||
| March | HC13027 | 33 | 5 (4) | G1-P[8]-I1 |
| May | HC13037 | 26 | 5 (2) | G1-P[8]-I2 |
| May | HC13040 | 8 | 2 (2) | G1-P[8]-I2 |
| May | HC13041† | 26 | 1 (1) | G1-P[8]-I2 |
| May | HC13043 | 21 | 5 (2) | G1-P[8]-I2 |
| May | HC13048 | 11 | 2 (2) | G1-P[8]-I2 |
| May | HC13049 | 15 | 5 (3) | G1-P[8]-I2 |
*All outbreaks occurred in nursery schools, except outbreak no. HC10062 (Dec 2010), which occurred in a primary school. RVA, rotavirus A.
†Only 1 sample had test results positive for RVA but the outbreak was confirmed on the basis of epidemiologic data from hospital clinics showing that other patients had RVA–positive test results.
Page created: May 16, 2014
Page updated: May 16, 2014
Page reviewed: May 16, 2014
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