Publications

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isolation of type a influenza and newcastle disease viruses from migratory waterfowl in the mississippi flyway.twenty-seven chicken red blood cell agglutinating agents were isolated from 187 tracheal swabbings of apparently healthy migratory mallard ducks (anas platyrhynchos) in the mississippi flyway. twenty-four of the isolants were type a influenza virus; 3 lentogenic newcastle disease viruses were isolated. isolations were not made from either 65 giant canada geese (branta canadensis) or 60 franklins' gulls (larus pipixcan).1977924873
outbreak of avian cholera on the wintering grounds of the mississippi valley canada goose flock.avian cholera is reported for the first time in canada geese, branta canadensis, of the mississippi valley population. the disease was detected in weekly surveillance transects and was responsible for the loss of about 850 geese during the winter of 1978-1979 at localized areas in southern illinois. necropsies performed on 480 geese that died at union county conservation area and on 133 birds at horseshoe lake conservation area during january and february 1979 revealed that the majority of losse ...19836887448
biologic and molecular characteristics of toxoplasma gondii isolates from striped skunk (mephitis mephitis), canada goose (branta canadensis), black-winged lory (eos cyanogenia), and cats (felis catus).toxoplasma gondii isolates can be grouped into 3 genetic lineages. type i isolates are considered virulent to outbred mice, whereas type ii and iii isolates are not. in the present report, viable t. gondii was isolated for the first time from striped skunk (mephitis mephitis), canada goose (branta canadensis), and black-winged lory (eos cyanogenia). for the isolation of t. gondii, tissues were bioassayed in mice, and genotyping was based on the sag2 locus. toxoplasma gondii was isolated from 3 o ...200415562622
antibodies to avian influenza viruses in canada geese (branta canadensis): a potential surveillance tool?traditionally, the epidemiology of avian influenza viruses (aivs) in wild birds has been defined by detection of virus or viral rna through virus isolation or reverse-transcription polymerase chain reaction. our goals were to estimate aiv antibody prevalence in canada geese (branta canadensis) and measure effects of age and location on these estimates. we collected 3,205 samples from nine states during june and july 2008 and 2009: georgia, massachusetts, minnesota, mississippi, new jersey, north ...201223060517
spatial and temporal variation in lead levels related to body condition in the mississippi valley population of canada geese.concern over lead poisoning led to progressive prohibition of toxic shot to harvest waterfowl in the 1980's. nevertheless, waterfowl remain susceptible to ingestion of lead shot because illegal use continues and spent shot persists in soil and wetland substrates. while mortality due to lead toxicosis has subsided, sublethal effects may still affect survival and reproduction. we measured liver lead levels and body condition in 732 canada geese (branta canadensis interior) during july 1984 to apri ...199910231744
renal coccidiosis in interior canada geese, branta canadensis interior todd, of the mississippi valley population.kidneys from 309 interior canada geese from three locations in the mississippi flyway were examined for renal coccidia. oocysts and/or young zygotes of eimeria sp. were found in 6.8% of goose kidneys sampled. only one type of renal coccidian oocyst was observed. significantly more immature geese were infected than adults; however, there was no significant difference observed between the prevalences of infection in male and female birds. a host cellular response to zygotes and oocysts was noted i ...19846530713
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