Volume 13, Number 6—June 2007
Research
Isolation and Characterization of Novel Human Parechovirus from Clinical Samples
Kanako Watanabe*†, Masayasu Oie*, Masaya Higuchi*, Makoto Nishikawa†, and Masahiro Fujii*
Table 4
Numbers of isolated HPeVs in 1991–2005 at Niigata, Japan*
| Year | HPeV subtype |
No. isolated HPeVs | No. examined samples | No. isolated viruses | |||
|---|---|---|---|---|---|---|---|
| Type 1 | Type 3 | Type 4 | Type 6 | ||||
| 1991 | 1 | 0 | 0 | 0 | 1 | 303 | 255 |
| 1992 | 0 | 0 | 0 | 0 | 0 | 142 | 53 |
| 1993 | 0 | 0 | 1 | 0 | 1 | 166 | 50 |
| 1994 | 0 | 0 | 0 | 0 | 0 | 151 | 55 |
| 1995 | 0 | 0 | 0 | 0 | 0 | 167 | 116 |
| 1996 | 0 | 0 | 0 | 0 | 0 | 133 | 54 |
| 1997 | 0 | 0 | 0 | 0 | 0 | 277 | 84 |
| 1998 | 1 | 1 | 0 | 0 | 2 | 1,607 | 1,117 |
| 1999 | 0 | 3 | 0 | 0 | 3 | 2,118 | 1,203 |
| 2000 | 2 | 2 | 0 | 3 | 7 | 1,974 | 1,127 |
| 2001 | 4 | 5 | 0 | 7 | 16 | 1,699 | 989 |
| 2002 | 0 | 0 | 0 | 0 | 0 | 2,783 | 1,787 |
| 2003 | 0 | 0 | 0 | 0 | 0 | 986 | 597 |
| 2004 | 5 | 2 | 0 | 0 | 7 | 584 | 329 |
| 2005 |
1 |
3 |
0 |
0 |
4 |
566 |
379 |
| Total | 14 | 16 | 1 | 10 | 41 | 13,656 | 8,195 |
*HPeV, human parechovirus.
