Survival of LA-MRSA in Dust of Pig and Poultry Barns
Dust of pig and poultry barns can he a carrier of culturable livestock associated methicillin resistant Staphylococcus aureus (LA-MRSA).A re-entrainment into pig herds or poultry flocks from a contaminated environment seems to be possihle.However,the survival of LA-MRSA in the animal environment and the transmission pathways are not fully understood.Therefore we tested the survival o culturable LA-MRSA in 20 dust samples of pig barns and in 9 dust samples of poultry barns.All dust samples were stored in sterile glas tubes with cork plugs at 4℃ in the dark.The age of analysed pig dust ranged between 18 and 34 months and the age of analyzed poultry dust varied from 10 to 34 months.The detection limit was 100 cfu LA-MRSA/g dust.LA-MRSA was detected again in two pig dust samples after 21 and 32 months and again in 4 poultry dust samples after 10,14,14 and 17 months.The detection rate (0.10)was lower in the aged pig dust samples than in the aged poultry dust samples (0.44),probably due to the in general older pig dust samples.Spa typing of isolates from the stored poultry dust samples showed the same types (t011 and t034)as found in the original samples.In general the results indicate a loss of culturability in the course of time.Nevertheless.the detected long-time survival of LA-MRSA in animal hous dust suggests an increased risk for a re-entrainment into a new herd or a new flock.The results underline the importance of effective cleaning and disinfection measures to avoid a re-entrainment from indoor dust residues and from the outdoor environment.
Schulz,J Qiao,F Weile,J Dreier,J Hartung,J
Institute for Animal Hygiene,Animal Welfare and Farm Animal Behaviour,University of Veterinary Medic College of Veterinary Medicine,Nanjing Agricultural University,210095 Nanjing,China Institut für Laboratoriums- und Transfusionsmedizin,Herz- und Diabeteszentrum Nordrhein-Westfalen,Un
国际会议
XVIth International Congress on Animal Hygiene(第十六届动物卫生国际会议(ISAH 2013))
南京
英文
260-262
2013-05-05（万方平台首次上网日期，不代表论文的发表时间）