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DETECTION OF METHICILLIN OR VANCOMYCIN-RESISTANT STAPHYLOCOCCUS AUREUS FROM DENTAL HOSPITAL

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¹ÎÁ¤Èñ ( Min Jung-Hee ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
¹Ú¼ø³¶ ( Park Soon-Nang ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­»ýÈ­Çб³½Ç
Ȳȣ±æ ( Hwang Ho-Keel ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
¹ÎÁ¤¹ü ( Min Jeong-Bum ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ Ä¡°úº¸Á¸Çб³½Ç
±èÈ­¼÷ ( Kim Hwa-Sook ) - Àü³²°úÇдëÇÐ Ä¡À§»ý°ú
±¹Áß±â ( Kook Joong-Ki ) - Á¶¼±´ëÇб³ Ä¡°ú´ëÇÐ ±¸°­»ýÈ­Çб³½Ç

Abstract

º» ¿¬±¸´Â Á¶¼±´ëÇб³ Ä¡°úº´¿øÀÇ Áø·áȯ°æ ¹× Áø·á¿ä¿øÀ¸·ÎºÎÅÍ ±âȸ°¨¿°¼º º´¿øü·Î ¾Ë·ÁÁø methicillin ¶Ç´Â vancomycin ÀúÇ×¼º Ȳ»öÆ÷µµ»ó ±¸±Õ (methicillin-or vancomycin-resistant Staphylococcus aureus. MRSA or VRSA)ÀÇ Á¸Àç ¿©ºÎ¸¦ Á¶»çÇÏ¿©, À̸¦ ±¤ÁÖÁö¿ª °³¿øÄ¡°ú¿Í ºñ±³ºÐ¼®À» ÅëÇØ ÇöÀç Á¶¼±´ëÇб³ Ä¡°úº´¿øÀÇ MRSA¿Í VRSAÀÇ ¿À¿°Á¤µµ¸¦ ÆľÇÇÏ°íÀÚ ÇÏ¿´´Ù. À̸¦ À§ÇØ Áø·á½Ç ȯ°æ ¹× Áø·á¿ä¿øÀ¸·ÎºÎÅÍ ºÐ¸®ÇÑ S. aureus ±ÕÁÖµéÀÇ 8Á¾ Ç×»ýÁ¦¿¡ ´ëÇÑ °¨¼ö¼º Á¶»ç¸¦ ½ÃÇàÇÏ°í, ±âÁ¸¿¡ ¾Ë·ÁÁø Ç×»ýÁ¦ ³»¼º À¯ÀüÀÚ Á¸Àç ¿©ºÎ¸¦ PCR¹ýÀ» ÀÌ¿ëÇÏ¿© È®ÀÎÇÏ¿´´Ù. ±× °á°ú, Á¶¼±´ëÇб³ Ä¡°úº´¿øÀÇ Áø·á¿ä¿ø¿¡¼­ äÃëÇÑ »ùÇà Áß 1°³ (2.3%), °³¿ø Ä¡°ú¿¡¼­´Â 2¸í (10%)ÀÇ Áø·á¿ä¿øÀÇ »ùÇÿ¡¼­ S. aureus°¡ ºÐ¸®µÇ¾úÀ¸¸ç, Áø·áȯ°æ¿¡¼­´Â µÎ °÷ ¸ðµÎ¿¡¼­ S. aureus°¡ °ËÃâµÇÁö ¾Ê¾Ò´Ù. Á¶¼±´ëÇб³ Ä¡°úº´¿ø°ú °³¿øÄ¡°ú¿¡¼­ ºÐ¸®µÈ S. aureus´Â amoxicillin, penicillin G, ciprofloxacin clindamycin, vancomycin¿¡ ³»¼ºÀ» º¸À̸ç oxacillin, cefuroxime¿¡´Â ±ÕÁÖ¿¡ µû¶ó °¨¼ö¼º ¶Ç´Â ³»¼ºÀ» º¸¿´´Ù. Á¶¼±´ëÇб³ Ä¡°úº´¿ø¿¡¼­ ºÐ¸®µÈ S. aureus´Â erythromycin°ú clindamycin¿¡ ³»¼º À¯ÀüÀÚÀÎ ermA°¡ Á¸ÀçÇÏ¿´À¸¸ç, °³¿øÄ¡°ú¿¡¼­ ºÐ¸®µÈ 3°³ÀÇ S. aureus Áß 2°³¿¡¼­ penicillin°ú oxacillin¿¡ ³»¼º À¯ÀüÀÚ mecA°¡ Á¸ÀçÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. Vancomycin ³»¼º À¯ÀüÀÚÀÎ vanA, vanB´Â ¾î¶°ÇÑ »ùÇÿ¡¼­µµ °ËÃâµÇÁö ¾Ê¾Ò´Ù. ÀÌ»óÀÇ °á°ú¸¦ Á¾ÇÕÇÒ ¶§, º» ¿¬±¸´Â Á¶¼±´ëÇб³ Ä¡°úº´¿ø°ú °³¿øÄ¡°úÀÇ S. auruesºÐÆ÷ ¹× MRSA ¶Ç´Â VRSAÀÇ Á¸Àç¿©ºÎ¸¦ Á¶»çÇÏ¿© MRSA¿Í VRSAÀÇ È®»ê¿¹¹æÀ» À§ÇÑ Ä¡°úÁø·á ȯ°æÀÇ °³¼±°ú ÀûÀýÇÑ Ç×»ýÁ¦ »ç¿ë¿¡ ´ëÇÑ ±âÃÊ ÀڷḦ Á¦°øÇÒ °ÍÀ¸·Î »ç·áµÈ´Ù.

The purpose of this study was to obtain the basic information for the improvement of dental environment by investigating the presence of methicillin- or vancomycin-resistant Staphylococcus aureus (MRSA or VRSA) isolated from dental health care workers (DHCWs) and environment of the Chosun University Dental Hospital (CUDH) and a private dental clinic (control group). Staphylococcus aureus (S. aureus) was isolated from anterior nares of 42 DHCWS and 38 sites, unit chairss, x-ray devices, computers, etc., at 10 departments of the CUDH and 20 DHCWs and 11 sites at the private dental clinic. S. aureus was isolated on mannitol salt agar plate and confirmed by PCR with S. aureus species-specific primer. Antimicrobial susceptibility test of clinical isolates of S. aureus against several antibiotics including methicillin (oxacillin) was performed by investigating minimum inhibitory concentration (MIC) using broth microdilution assay. In addition, PCR was performed to detect the methicillin- or vancomycin-resistant gene. The data showed that one strain of S. aureus was isolated from DHCWs of the CUDH and three strains of S. aureus was isolated from 3 samples of the private dental clinic, respectively. All of the isolates from the CUDH and the private dental clinic had resistance to penicillin G, amoxicillin and vancomycin and susceptibility to oxacillin and ciprofloxacin. The S. aureus strains were already obtained the resistance to penicillin G and amoxicillin. These results suggest that two dental clinics were under relatively safe environment.

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MRSA;VRSA;Minimum inhibitory concentration;PCR

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