Posterior Nasal Swab Culture in Normal Newborns by Feeding Method. |
Young Youn Choi1, Tai Ju Hwang1, Jae Sook Ma1, Kwang Ok Lee1, Byung Hee Kim1, Young Soo Chung1, En Kyeong Bom1, Too Yong Yoo2 |
1Department of Pediatrics, Chonnam University Medical School, Kwangju, Korea 2Department of Clinical Pathology, Chonnam University Medical School, Kwangju, Korea |
수유 방법에 따른 정상 신생아의 후비점막 세균상 |
최영륜1, 황태주1, 마재숙1, 이광옥1, 김병희1, 전영수1, 범은경1, 유주용2 |
1전남대학교 의과대학 소아과학교실 2전남대학교 의과대학 임상병리과학교실 |
Received: 23 October 1989 • Accepted: 23 February 1990 |
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Abstract |
To evaluate the difference of normal flora between breast and formula-fed newborns, we performed
quantitative posterior nasal swab culture in 21 breast-and 44 formula-fed newborns.
Positive culture rates of total aerobes and total anaerobes were 100% and 98%, respecitively.
Among the aerobes, positive culture rate was 100% in group B streptococcus, 98% in gram negative
bacteria, 86% in staphylococcus aureus, 82% in staphylococcus epidermidis in the order.
Culture rates above 101 per ml saline of total aerobes and total anaerobes were 100% and 0%,
respectively. Among the aerobes, positive culture rate was 80% in staphylococcus aureus, 72% in
staphylococcus epidermidis, 55% in enteric gram negative bacteria, 17% in enterococcus in the order.
Culture rates above 105 per ml saline of total aerobes and total anaerobes were 83% and 0%,
respectively. Among the aerobes, positive culture rate was 25% in staphylococcus aureus, 25% in
enteric gram negative bacteria, 14% in staphylococcus epidermidis, 5% in enterococcus in the order.
Positive culture rates of staphylococcus aureus and staphylococcus epidermidis were significantly
higher in breast-fed group than those in formula-fed group (p<0.05) but there was no difference in
culture rates of all species above 101 or 105 per ml saline.
Consequently, the positive culture rates of staphylococcus aureus and staphylococcus epidermidis
in breast-fed group are significantly higher than those in formula-fed. But further studies are required
to evaluate whether these aerobes as a normal flora in posterior nasal mucosa, can play a role in
inhibiting the growth of the pathogenic bacteria. |
Key Words:
Postorior nasal swab culture, Formula-and breast-fed newborn |
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