Publications

pcr for detection of clostridium botulinum type c in avian and environmental samples.	a pcr was developed and applied for the detection of clostridium botulinum type c in 18 avian and environmental samples collected during an outbreak of avian botulism, and the results were compared with those obtained by conventional methodologies based on the mouse bioassay. pcr and mouse bioassay results compared well (100%) after the enrichment of samples, but pcr results directly indicated the presence of this microorganism in six samples, while only one of these contained the type c botulin ...	1996	8815101
update on molecular epidemiology of h1, h5, and h7 influenza virus infections in poultry in north america.	avian influenza is endemic in wild birds in north america, and the virus routinely has been transmitted from this reservoir to poultry. influenza, once introduced into poultry, can become endemic within the poultry population. it may be successfully eradicated by human intervention, or the virus may fail to successfully spread on its own. in the last 5 yr, influenza virus has been isolated from poultry in the united states on numerous occasions, and, with the use of molecular epidemiology, the r ...	2003	14575082
using amplified fragment length polymorphism analysis to differentiate isolates of pasteurella multocida serotype 1.	avian cholera, an infectious disease caused by the bacterium pasteurella multocida, kills thousands of north american wild waterfowl annually. pasteurella multocida serotype 1 isolates cultured during a laboratory challenge study of mallards (anas platyrhynchos) and collected from wild birds and environmental samples during avian cholera outbreaks were characterized using amplified fragment length polymorphism (aflp) analysis, a whole-genome dna fingerprinting technique. comparison of the aflp p ...	2008	18436655
avian influenza surveillance reveals presence of low pathogenic avian influenza viruses in poultry during 2009-2011 in the west bengal state, india.	more than 70 outbreaks of the highly pathogenic avian influenza (hpai) h5n1 have been reported in poultry in the western and north-eastern parts of india. therefore, in view of the recent hpai h5n1 outbreaks in poultry, active ai surveillance encompassing wild, resident, migratory birds and poultry was undertaken during 2009-2011 in the state of west bengal.	2012	22867041
complex reassortment of multiple subtypes of avian influenza viruses in domestic ducks at the dongting lake region of china.	to gain insight into the ecology of avian influenza viruses (aiv), we conducted active influenza virus surveillance in domestic ducks on farms located on the flyway of migratory birds in the dongting lake region of hunan province, china, from winter 2011 until spring 2012. specimens comprising 3,030 duck swab samples and 1,010 environmental samples were collected from 101 duck farms. we isolated aiv of various ha subtypes, including h3, h4, h5, h6, h9, h10, h11, and h12. we sequenced the entire ...	2013	23804642
investigation of avian influenza infections in wild birds, poultry and humans in eastern dongting lake, china.	we investigated avian influenza infections in wild birds, poultry, and humans at eastern dongting lake, china. we analyzed 6,621 environmental samples, including fresh fecal and water samples, from wild birds and domestic ducks that were collected from the eastern dongting lake area from november 2011 to april 2012. we also conducted two cross-sectional serological studies in november 2011 and april 2012, with 1,050 serum samples collected from people exposed to wild birds and/or domestic ducks. ...	2014	24755911
genetic and antigenic characterization of h5, h6 and h9 avian influenza viruses circulating in live bird markets with intervention in the center part of vietnam.	a total of 3,045 environmental samples and oropharyngeal and cloacal swabs from apparently healthy poultry have been collected at three live bird markets (lbms) at which practices were applied to reduce avian influenza (ai) virus transmission (intervention lbms) and six conventional lbms (non-intervention lbms) in thua thien hue province in 2014 to evaluate the efficacy of the intervention lbms. the 178 ai viruses, including h3 (19 viruses), h4 (2), h5 (8), h6 (30), h9 (114), and h11 (5), were i ...	2016	27527783