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KMID : 0438520080150010044
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Journal of the Korean Society of Neonatology
2008 Volume.15 No. 1 p.44 ~ p.53
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An Outbreak of Epidemic Keratoconjunctivitis by Adenovirus Type 8 in a Neonatal Intensive Care Unit
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Park Narimi
Lee Jin-A
Lee Hoan-Jong
Oh Hyang-Soon
Kim Seong-Joon
Kim Ee-Kyung
Choi Jung-Hwan
Kim Han-Suk
Joung Kyoung-Eun
Na Ji-Youn
Song Jung-Sook
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Abstract
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Purpose: Epidemic keratoconjunctivitis (EKC) caused by adenovirus is a highly contagious disease, which has been reported as outbreaks involving adults in the community. However, there has been no report on EKC outbreak by adenovirus in a neonatal intensive care unit (NICU) in Korea. Aims of this study were to investigate the EKC outbreak by adenovirus type 8 in NICU and to confirm an effectiveness of polymerase chain reaction (PCR) for diagnosis.
Method: Conjunctival swab or nasopharyngeal aspirate specimens were taken from all patients and tested by viral culture and PCR. Adenovirus serotype was determined by sequencing of PCR product of selected region of hexon gene using the virus isolates or specimens.
Result: An outbreak of EKC occurred which was involving 12 preterm infants in the NICU of the Seoul National University Children’s Hospital between July 12th and August 1st, 2005. Three hospital staffs and one family member of the neonate were also affected. Adenovirus was detected in 12/12 (100%), 6/11 (54.5%) by PCR and virus culture, respectively. Eleven PCR-positive neonates were identified as serotype 8 by sequencing. The first affected 4 babies have had routine ROP (retinopathy of prematurity) examinations one week ago. While previous outbreaks were sustained for a few months, the event in our unit was controlled without complications in 3 weeks.
Conclusions: We analyzed the EKC outbreak by adenovirus type 8 in NICU. Adenovirus serotype was identified by PCR and sequencing with high sensitivity for the first time in Korea, so we suggest this method can be very useful for rapid diagnosis and infection control.
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KEYWORD
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Epidemic keratconjunctivitis, Adenovirus, Neonatal intensive care units, Premature infant
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