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À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2019.03.26 Á¶È¸¼ö 383
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¹ÚÅ׸®¾Æ ¿£Å×·ÎÄÚÄ¿½º Æнÿò(Enterococcus faecium, E. faecium) ±ÕÁÖ´Â ÀϹÝÀûÀ¸·Î °Ç°­ÇÑ »ç¶÷¿¡°Ô´Â ¹«ÇØÇÏÁö¸¸ ¸é¿ª ÀúÇÏ ¶Ç´Â ÁßÁõ ȯÀÚ¿¡¼­´Â º´¿ø¼ºÀÌ ÀÖ´Ù.

 

º´¿ø ȯ°æÀÇ ¿£Å×·ÎÄÚÄ¿½º Æнÿò(E. faecium) ±ÕÁÖ´Â ½É°¢ÇÑ °¨¿°À» Ä¡·áÇÏ´Â µ¥ »ç¿ëµÇ´Â Ç×»ýÁ¦¸¦ Æ÷ÇÔÇÏ¿© ÀϹÝÀûÀ¸·Î »ç¿ëµÇ´Â Ç×»ýÁ¦¿¡ ´ëÇÑ ÀúÇ×¼ºÀ» È®º¸ÇÏ¿© ÀÌ·¯ÇÑ °¨¿°À» Ä¡·áÇÏ´Â °ÍÀ» ƯÈ÷ ¾î·Æ°Ô ¸¸µç´Ù.

 

¡º°Ô³ð ¸®¼­Ä¡¡»(Journal of Research) Áö¿¡ ¹ßÇ¥µÈ ¿¬±¸ °á°ú¿¡ µû¸£¸é ¿¬±¸¿øµéÀº ¿µ±¹ÀÇ 20°³ µµ½Ã ÇÏ¡¤Æó¼öó¸®ÀåÀ» Á¶»çÇÑ °á°ú, Àڿܼ± ¼Òµ¶À» »ç¿ëÇÏ´Â 3°÷À» Á¦¿ÜÇÑ ¹Ìó¸® ¹× ó¸®µÈ ÇÏ¡¤Æó¼öó¸®ÀåÀÇ ¸ðµç Àå¼Ò¿¡¼­ ¾à¹° ³»¼º ¿£Å×·ÎÄÚÄ¿½º Æнÿò(E. faecium)À» ºÐ¸®Çß´Ù. 

 

Áß¿äÇÑ °ÍÀº ¾à¹° ³»¼º ¿£Å×·ÎÄÚÄ¿½º Æнÿò(E. faecium) ¼öÄ¡°¡ º´¿ø ÇϼöÀÇ Á÷Á¢ÀûÀÎ ¼ö·ÉÀÚ ÀÎ ½Ä¹°¿¡¼­ 󸮵ÇÁö ¾ÊÀº Æó¼ö¿¡¼­ À¯ÀÇÇÏ°Ô ³ô¾Ò´Ù´Â °ÍÀÌ´Ù. °¨¿°µÈ ȯÀÚÀÇ Æó¼ö ¹× Ç÷·ù ´ÜÇÙ±¸¿¡¼­ ºÐ¸®µÈ ¿£Å×·ÎÄÚÄ¿½º Æнÿò(E. faecium) ±ÕÁÖÀÇ °Ô³ð ºñ±³¸¦ ÅëÇØ Å¬·¹¾Æ A1 ¹× A2¿¡¼­ ¾ÏÇǽǸ° ³»¼º ¹ÚÅ׸®¾Æ, Ŭ·¹ µå A1¿¡¼­ ´Üµ¶ÀÎ ¹ÝÄÚ¸¶À̽Š³»¼º ¹ÚÅ׸®¾Æ¿Í ÇÔ²² µÎ °¡Áö ÁÖ¿ä °èÅëÀÌ ¹àÇôÁ³´Ù.

 

Ãß°¡ À¯Àü ºÐ¼®Àº Ç÷·ù, º´¿ø Çϼö ¹× µµ½Ã Æó¼ö¿¡¼­ ºÐ¸® µÈ Ŭ·¹ µå A1 ±ÕÁÖ¿¡¼­ °øÀ¯ µÈ Ç×»ýÁ¦, ±Ý¼Ó ¹× Ç×±ÕÁ¦ ³»¼º À¯ÀüÀÚÀÇ Á¸À縦 ¹àÇô³Â´Ù.

 

ÀÌ ¿¬±¸´Â ½É°¢ÇÑ Àΰ£ Áúº´À» À¯¹ßÇÏ´Â ¾à¹° ³»¼º ¿£Å×·ÎÄÚÄ¿½º Æнÿò(E. faecium) ±ÕÁÖ¿Í È¯°æ¿¡ ¹æÃâµÈ ¿£Å×·ÎÄÚÄ¿½º Æнÿò(E. faecium) ±ÕÁÖÀÇ À¯Àü Àû ¿¬°ü¼ºÀ» º¸¿©ÁØ´Ù. º¸°Ç ¹× Æó±â¹° °ü·Ã º´¿øü¿¡ ´ëÇÑ °øÁß º¸°Ç ¿µÇâÀ» °áÁ¤Çϱâ À§Çؼ­´Â ´õ ¸¹Àº ¿¬±¸°¡ ÇÊ¿äÇÏ´Ù. ÇÏ¡¤Æó¼öÀÇ Àڿܼ± ¼Òµ¶Àº ¾à¹° ³»¼º ¹ÚÅ׸®¾Æ¿¡ ÀÇÇÑ È¯°æ¿À¿°À» ÁÙÀÌ´Â ÇϳªÀÇ ¼Ö·ç¼ÇÀÌ´Ù.

 

ÄÉÀӺ긮Áö(Cambridge)´ëÇÐ, ¿µ±¹ º¸°Ç±¹(Public Health England), ¾Æµ§ºê·è(Addenbrooke) º´¿ø, À£ÄÄ Æ®·¯½ºÆ® »ý¾î ÀνºÆ¼Åû(Wellcome Trust Sanger Institute), ·±´ø À§»ý ¿­´ë ÀÇÇдëÇпø(London School of Hygiene and Tropical Medicine), ¿µ±¹ Ç×±ÕÈ­Çпä¹ýÇÐȸ, ¿À½½·Î(Oslo) ´ëÇÐ ¹× ¸¶È÷µ·(Mahidol) ´ëÇÐÀÇ ¿¬±¸¿øÀÌ ¿¬±¸¿¡ ±â¿©Çß´Ù.

 

ÀÌ ¿¬±¸´Â °Ç°­ Çõ½Å 縰Áö ±â±Ý(Health Innovation Challenge Fund), À£ÄÄ Æ®·¯½ºÆ® ¿¬±¸¿ø Æç·Î¿ì½Ê(Wellcome Trust Research Training Fellowship), À£ÄÄ Æ®·¯½ºÆ®°æ Ç ¹Ú»çÈÄ ¿¬±¸¿ø(Wellcome Trust Sir Henry Postdoctoral Fellowship), À¯·´ ¿¬±¸À§¿øȸ(European Research Council)ÀÇ ¿¬±¸ºñ Áö¿øÀ¸·Î ÀÌ·ç¾îÁ³´Ù.

 

 

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Pathogenic, Drug-Resistant Bacteria Found In Wastewater Treatment Plants

 


Infections caused by drug-resistant bacteria are a global public health threat causing serious illness and even death. Strains of the bacterium Enterococcus faecium (E. faecium) are generally harmless in healthy people, but can be pathogenic in immunocompromised or severely ill patients. E. faecium strains from hospital environments have acquired resistance to commonly used antibiotics, including those used to treat serious infections, making these infections especially challenging to treat.

 

In a study published today in Genome Research, researchers conducted a survey of 20 municipal wastewater plants in England, and isolated drug-resistant E. faecium from all sites in both untreated and treated wastewater plants except three, which use ultraviolet light disinfection. Importantly, drug-resistant E. faecium counts were significantly higher in untreated wastewater from plants that were direct recipients of hospital sewage.

 

A genomic comparison of E. faecium isolates from wastewater and bloodstream isolates of infected patients revealed two major lineages, with ampicillin-resistant bacteria in clade A1 and A2 and vancomycin-resistant bacteria exclusive to clade A1. Further genetic analysis revealed the presence of shared antibiotic, metal, and biocide resistance genes in clade A1 isolates from bloodstream, hospital sewage, and municipal wastewater.

 

This study demonstrates close genetic relatedness of drug-resistant E. faecium isolates released into the environment with those that cause serious human disease. Further research is needed to determine the public health implications of exposure to healthcare- and waste-associated pathogens. Terminal ultraviolet light disinfection of wastewater is one solution that would reduce environmental contamination with drug-resistant bacteria.

 

Researchers from the University of Cambridge, Public Health England, Addenbrooke's Hospital, Wellcome Trust Sanger Institute, London School of Hygiene and Tropical Medicine, British Society for Antimicrobial Chemotherapy, University of Oslo, and Mahidol University contributed to this work. The study was funded by grants from the Health Innovation Challenge Fund, Wellcome Trust Research Training Fellowship, Wellcome Trust Sir Henry Postdoctoral Fellowship, and European Research Council.

 

[Ãâó=¿öÅͿ¶óÀÎ(https://www.wateronline.com/doc/pathogenic-drug-resistant-bacteria-found-in-wastewater-treatment-plants-0001) / 2019³â 3¿ù 21ÀÏ]

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