Volume 21, Number 11—November 2015
Research
Role of Maternal Antibodies in Infants with Severe Diseases Related to Human Parechovirus Type 31
Table 1
Numbers and rates of seropositivity to HPeV types 1, 3, and 6 in cord blood samples from healthy full-term infants, by maternal age, Niigata, Japan, September 2013–January 2014*
HPeV type |
Maternal age, no. (%) samples | |||
---|---|---|---|---|
All ages, n = 175† |
16–24 y, n = 11 |
25–34 y, n = 107 |
35–44 y, n = 57 |
|
HPeV1 | 113 (65) | 6 (55) | 75 (70) | 32 (56) |
HPeV3 | 107 (61) | 11 (100) | 68 (64) | 28 (49) |
HPeV6 | 125 (71) | 8 (73) | 69 (64) | 48 (84) |
*HPeV, human parechovirus. A cutoff of 1:32 was used for HPeV1, 3, and 6.
†Antibody positivity rates compared among the 3 genotypes; p = 0.12.
1Presented in part at IDWeek, October 8–12, 2014, Philadelphia, Pennsylvania, USA.