Dear Editor,The ongoing threat of tick-borne diseases,especially the increasing rate of new infections caused by tick-borne viruses has drawn wide attention in recent years(Madison-Antenucci et al.,2020;Yang et al.,20...Dear Editor,The ongoing threat of tick-borne diseases,especially the increasing rate of new infections caused by tick-borne viruses has drawn wide attention in recent years(Madison-Antenucci et al.,2020;Yang et al.,2023).Therefore,there is a need to strengthen the surveillance of a wide range of viruses carried by ticks to prevent outbreaks of tick-borne diseases.展开更多
An endemic multi-drug resistant ST117 E. coli isolate coproducing MCR-1 and 3 ESBL loci was, for the first time, detected from diseased chicken, Liaoning Province, in Northeast China, from 2011 to 2012. Wholegenome se...An endemic multi-drug resistant ST117 E. coli isolate coproducing MCR-1 and 3 ESBL loci was, for the first time, detected from diseased chicken, Liaoning Province, in Northeast China, from 2011 to 2012. Wholegenome sequencing revealed 5 unique plasmids, namely pHXH-1, pHXH-2, pHXH-3, pHXH-4 and pHXH-5). Among them, pHXH1 and pHXH4 encode ESBL, and pHXH-5 mediates MCR-1 colistin resistance. The results indicate that the potentially-national dissemination of MCR-1-positive pathogens with pan-drug resistance proceeds via food chains.展开更多
In this paper we reanalyze Said’s(2011) work by retaining all his assumptions except that we use the first-price auction to sell differentiated goods to buyers in dynamic markets instead of the second-price auction. ...In this paper we reanalyze Said’s(2011) work by retaining all his assumptions except that we use the first-price auction to sell differentiated goods to buyers in dynamic markets instead of the second-price auction. We conclude that except for the expression of the equilibrium bidding strategy, all the results for the first-price auction are exactly the same as the corresponding ones for the second-price auction established by Said(2011). This implies that the well-known "revenue equivalence theorem"holds true for Said’s(2011) dynamic model setting.展开更多
文摘Dear Editor,The ongoing threat of tick-borne diseases,especially the increasing rate of new infections caused by tick-borne viruses has drawn wide attention in recent years(Madison-Antenucci et al.,2020;Yang et al.,2023).Therefore,there is a need to strengthen the surveillance of a wide range of viruses carried by ticks to prevent outbreaks of tick-borne diseases.
基金supported by National Key R&D Program of China (2017YFD0500202,YF)National Key Basic Research Program of China (2016YFC1200100,YF)National Natural Science Foundation of China (31570027 & 81772142,YF)
文摘An endemic multi-drug resistant ST117 E. coli isolate coproducing MCR-1 and 3 ESBL loci was, for the first time, detected from diseased chicken, Liaoning Province, in Northeast China, from 2011 to 2012. Wholegenome sequencing revealed 5 unique plasmids, namely pHXH-1, pHXH-2, pHXH-3, pHXH-4 and pHXH-5). Among them, pHXH1 and pHXH4 encode ESBL, and pHXH-5 mediates MCR-1 colistin resistance. The results indicate that the potentially-national dissemination of MCR-1-positive pathogens with pan-drug resistance proceeds via food chains.
基金Supported by the National Natural Science Foundation of China(71171052)
文摘In this paper we reanalyze Said’s(2011) work by retaining all his assumptions except that we use the first-price auction to sell differentiated goods to buyers in dynamic markets instead of the second-price auction. We conclude that except for the expression of the equilibrium bidding strategy, all the results for the first-price auction are exactly the same as the corresponding ones for the second-price auction established by Said(2011). This implies that the well-known "revenue equivalence theorem"holds true for Said’s(2011) dynamic model setting.
