Rotavirus vaccine strain transmission by vaccinated infants in the foster home

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• 作者：Hiroki Miura ; Yoshiki Kawamura ; Ken Sugata ; Nozomi Koshiyama ; Akiko Yoshikawa ; Satoshi Komoto ; Koki Taniguchi ; Masaru Ihira and Tetsushi Yoshikawa
• 刊名：Journal of Medical Virology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：89
• 期：1
• 页码：79-84
• 全文大小：400K
• ISSN：1096-9071

文摘

Previous studies have demonstrated the transmission of rotavirus vaccine strains from vaccinated children to nonvaccinated siblings. We sought to fully elucidate the safety of rotavirus (RV) vaccination in closed contact circumstance, such as the foster home for future assessment of the vaccine safety in an neonatal intensive care unit. Stool samples were collected from 4 RV vaccinated (160 samples) and 23 unvaccinated (766 samples) infants. RV viral RNA loads were measured using real-time reverse transcription polymerase chain reaction (RT-PCR). RV vaccine strain RNA was persistently detected in stool samples collected from the four vaccine recipients and one unvaccinated infant, but not in the stool samples collected from the 22 other unvaccinated infants. The unvaccinated infant who tested positive for the RV vaccine strain was vaccinated prior to enrollment in this study. The quantitative real-time RT-PCR data revealed a peak viral RNA load 1 week after vaccination followed by a gradual decrease. The current study suggests that RV vaccination may be safe in a close contact environment because there was limited transmission from RV vaccinated to unvaccinated infants. J. Med. Virol. 89:79–84, 2017.