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arbovirus surveillance in six states during 1972.a virus surveillance project was established and maintained during 1972 along 10 major river drainages in six states. mosquitoes, biting flies, and blood specimens from sentinel equines were collected during 83 field trip visits to 141 arthropod collecting sites and 22 sentinel locations from april into december 1972. there were 173,074 mosquitoes tested and 303 arboviruses isolated from 11 of 41 species. from 13,388 biting flies tested, 8 arbovirus isolations were obtained in 1 of 5 species. th ...19767148
serologic survey for equine infectious anemia virus in louisiana.in 1975, a survey was conducted in east baton rouge parish, louisiana, to determine the prevalence of equine infectious anemia. using the agar gel immunodiffusion test, 94 of 1,398 horses (6.7%) were found to be infected. infection rates were especially high in areas where clinical cases of equine infectious anemia had been diagnosed. clinical signs compatible with the disease were noted in 1 of the 94 seropositive horses. the sample set of 1,398 horses represented 22% of the census population o ...1979221447
experimental transmission of venezuelan equine encephalomyelitis virus by a strain of aedes albopictus (diptera: culicidae) from new orleans, louisiana.experimental studies were undertaken to ascertain the vector competence of a strain of aedes albopictus (skuse) collected in new orleans, la, (gentilly strain) for an epizootic (trinidad donkey) strain of venezuelan equine encephalomyelitis (vee) virus. this strain of ae. albopictus was significantly more susceptible to infection with vee virus than were any of the four strains tested previously, including two from north america and two from south america. likewise, dissemination (148 of 180) (8 ...19921404258
similar reproductive status and body size of horse flies (diptera: tabanidae) attracted to carbon dioxide-baited canopy traps and a jersey bullock.the reproductive status and body size of four tabanus species collected from canopy traps baited with carbon dioxide and from a jersey bullock were compared. parity rates, sperm prevalence, stage of follicular development in terminal follicles of parous females, prevalence of females retaining eggs, average number of eggs retained in parous flies, and the body size of parous females did not differ significantly between sampling methods. based on the presence of nulliparous host-seeking flies, ta ...19921460623
amputation of the tail of a horse as the basis for a malpractice suit. 19911885304
identification of thiabendazole-resistant cyathostome species in louisiana.a critical trial was performed with five ponies 6-9 months of age and raised on a horse farm with demonstrated benzimidazole-resistant cyathostomes. eleven species of cyathostomes were recovered, seven of which had resistance to thiabendazole. degrees of resistance varied among ponies and from species to species. resistant species were cyathostomum coronatum, cyathostomum catinatum, cylicostephanus minutus, cylicostephanus calicatus, cylicostephanus longibursatus, cylicostephanus goldi and cylic ...19911957489
identification of isolate-specific sporozoite proteins of cryptosporidium parvum by two-dimensional gel electrophoresis.five isolates of cryptosporidium parvum collected from human, horse, and calf sources were compared for differences in sporozoite protein patterns by using two-dimensional gel electrophoresis. silver-stained two-dimensional gels contained over 300 protein spots from detergent-solubilized sporozoites. a distinguishing 106-kilodalton peptide that shifted in isoelectric point was detected in four of the five isolates. computerized two-dimensional gel analysis was performed to obtain objective quant ...19902365452
prevalence of cryptosporidium sp in equids in louisiana.in 1985, 22 pony foals reared in a helminth-free environment were tested daily for oocysts of cryptosporidium sp by use of fecal flotation. oocysts were found in all foals. oocysts were first observed in feces collected from foals 9 to 28 days after birth. the mean period of oocyst shedding was 10 days and ranged from 2 to 18 days in individual foals. diarrhea was observed in 14 of 22 (64%) foals and began before the period of oocyst shedding. fecal samples also were examined for other infective ...19892712425
seasonal changes in density and tissue distribution of onchocerca cervicalis microfilariae in ponies and related changes in culicoides variipennis populations in louisiana.seasonal changes in density and spatial distribution of onchocerca cervicalis microfilariae were studied in ventral-midline skin of 15 infected pony mares in southern louisiana. triple running mean analysis of data over a 13-mo period indicated that a distinct pattern exists in total microfilariae population density and in microfilariae occurrence in different levels of the dermis. microfilariae density reaches peak levels in the spring followed by a 58% decrease in the summer, a 19% increase in ...19873585627
a survey in louisiana of intestinal helminths of ponies with little exposure to anthelmintics.ponies reared with minimal or no exposure to anthelmintics were surveyed for intestinal helminths in order to estimate prevalence and intensity of parasite populations unaltered by frequent exposure to anthelmintics. thirty-seven mixed breed ponies of varying ages were examined. thirty-four species of nematodes and 2 species of cestodes were found. twenty-four of the nematode species (including 1 new species) were in the subfamily cyathostominae (small strongyles). eighty-seven percent of the to ...19863819969
prevalence of setaria equina (nematode: onchocercidae) in southeastern louisiana horses. 19854032153
anthrax in louisiana, 1971: an evaluation of the sterne strain anthrax vaccine. 19734200690
anthrax in louisiana, 1971: epizootiologic study. 19734200691
role of horse fly (tabanus fuscicostatus hine) and stable fly (stomoxys calcitrans l.) in transmission of equine infectious anemia to ponies in louisiana. 19734357708
isolation of the vaccine strain of venezuelan equine encephalomyelitis virus from mosquitoes in louisiana. 19724401801
letter: seeking a solution to the horse manure problem. 19744406700
onchocerciasis of horses in southeastern louisiana. 19734760637
chlorine gas poisoning in farm livestock: case report and review. 19714926539
prevalence of rotavirus antibody in chickens and horses in louisiana, usa. 19826278698
prevalence of onchocerca cervicalis in equids in the gulf coast region.microfilariae of onchocerca cervicalis were detected in midventral skin biopsy samples in 64 of 84 (76%) mixed-breed ponies greater than 2 years old from the gulf coast area and in 42 of 51 (82.4%) horses from louisiana breeding herds. the number of microfilariae per 8 mm of biopsied skin (ponies) ranged from 1 to 21,570. the number of microfilariae per 6 mm of biopsied skin (horses) ranged from 8 to 55,600.19846476578
a survey of adverse effects associated with ivermectin use in louisiana horses.in a survey of 13 louisiana equine practices, it was determined that 366 of 3,316 horses developed adverse reactions following use of ivermectin, with 3 of the horses having more than 1 reaction. almost all of the reactions were of minor to moderate concern; however, 1 death was reported. three hundred and thirty-two (91% of all reactions) were reported as ventral midline pruritus or edema (10% of all doses). fifteen (0.45%) were transient injection site swelling and/or stiffness. eleven horses ...19846548469
effects of treatment with ivermectin for five years on the prevalence of anoplocephala perfoliata in three louisiana pony herds. 19947975087
pathology of eastern equine encephalitis in emus (dromaius novaehollandiae). 19948140715
chronic obstructive pulmonary disease in horses in louisiana.to evaluate chronic obstructive pulmonary disease of horses in louisiana by assessing the signalment, history, environmental factors, clinical signs, and treatment of such horses.19968567383
pathological gambling in louisiana: an epidemiological perspective.a review of telephone interview data using the south oaks gambling screen on a random sample of 1,818 louisiana residents > 18 years indicated that 4.8% of adults > 21 years (approximately 122,500) have gambling disorders, compared to 14.4% of 18 to 21 year olds (approximately 21,000). geographic distribution of gambling disorders shows equal statewide penetrance. pathological gamblers are demographically distinct, more likely to be male, < 30 years, non-caucasian, unmarried, and less likely to ...19968855603
use of statistical models to evaluate racing performance in thoroughbreds.to develop a statistical model to evaluate the influence of specific parameters on racing performance in thoroughbreds.19968944806
identification and characterization of a pyrantel pamoate resistant cyathostome population.three fecal egg count reduction assays (fecr) and one critical trial were performed to determine the efficacy of pyrantel pamoate (pp) at 6.6 mg base kg-1 on a well managed stud farm in louisiana where a loss of efficacy was suspected. efficacy of pp based on fecr varied from 25% in mares to 83% in yearlings. second treatments with pp 2 weeks following an initial treatment failed to reduce eggs per gram (epg). a critical trial was performed to determine the cyathostome species resistant to pp. t ...19969017883
seasonal development and survival of equine cyathostome larvae on pasture in south louisiana.cyathostome development and survival on pasture in subtropical climates of the us have yet to be completely defined and available data on seasonal transmission are minimal. in an attempt to study this phenomenon, a group of pony mares and their foals was maintained on a naturally contaminated pasture in southern louisiana. fecal egg counts (fec) and numbers of infective third stage larvae (l3) kg(-1) dry herbage were recorded biweekly during two time periods, from january 1986 through december 1 ...200010681022
efficacy of the nematophagous fungus duddingtonia flagrans in reducing equine cyathostome larvae on pasture in south louisiana.the effectiveness of duddingtonia flagrans in reducing the free living third stage larvae (l(3)) of equine cyathostomes on pasture when fed to horses has been demonstrated in cold temperate climates. the objective of this experiment was to assess the efficacy of d. flagrans against equine cyathostomes in the subtropical environment of southern louisiana. fecal pats were prepared by mixing feces obtained from a parasite-free horse fed d. flagrans at a dose of approximately 2 x 10(6) spores kg(-1) ...200010760412
seasonal transmission of gastrointestinal parasites of equids in southern louisiana.parasite-naive pony foals were used as sentinels to monitor transmission of gastrointestinal parasites of equids in louisiana during 4 seasons of the year. two annual periods were studied, 1988-1989 and 1992-1993. two or 3 foals each season were turned out to graze a contaminated pasture along with resident parasitized mares and their foals. after a grazing period of 8 wk, sentinel ponies were held in a parasite-free box stall for a period of 6 wk to allow parasites to develop, thus enhancing th ...200111780824
weekly update: west nile virus activity--united states, july 17-23, 2002.this report summarizes west nile virus (wnv) surveillance data reported to cdc through arbonet and verified by states and other jurisdictions as of july 23, 2002. during the reporting week of july 17-23, nine human cases of wnv were reported from two states (louisiana and mississippi). during the same period, wnv infections were reported in 202 dead crows, 48 other dead birds, 13 horses, and 69 mosquito pools.200212186223
west nile virus activity--united states, july 31-august 7, 2002, and louisiana, january 1-august 7, 2002.this report summarizes west nile virus (wnv) surveillance data reported to cdc through arbonet and by states and other jurisdictions as of august 7, 2002.200212233908
parastrongylus (=angiostrongylus) cantonensis now endemic in louisiana wildlife.parastrongylus (=angiostrongylus) cantonensis, a lung worm of rats, was first reported in the united states in 1987, with a probable introduction by infected rats from ships docking in new orleans, louisiana, during the mid-1980s. since then, it has been reported in nonhuman primates and a boy from new orleans, and in a horse from picayune, mississippi, a distance of 87 km from new orleans. parastrongylus cantonensis infection is herein reported in a lemur (varencia variegata rubra) from new ibe ...200212435151
gastrointestinal helminths of ponies in louisiana: a comparison of species currently prevalent with those present 20 years ago.a survey in louisiana of gastrointestinal helminths recovered at necropsy from 117 ponies with minimal exposure to anthelmintics between 1989 and 2000 is compared with a survey conducted 20 yr earlier in the same region. an objective of this study was to determine whether species diversity has been affected by the advent and use of the macrocyclic lactone (ml) parasiticides and by the increased anthelmintic pressure on the helminth species infecting the general equine population. twenty-six cyat ...200212537106
prevalence of strongyle nematodes in naturally infected ponies of different ages and during different seasons of the year in louisiana.one hundred and seventeen ponies were surveyed for the seasonal prevalence of strongyloid parasites, particularly cyathostomes, and for host- and age-related differences in these infections. for 56 ponies, all stages of the cyathostome life cycle, both mucosal and luminal, were enumerated. total numbers of cyathostomes and percentage of developing larvae (dl) encysted in the mucosa remained constant in all 4 seasons of the year, whereas a significant increase in the percentage of adults in the c ...200312760645
mosquitoes captured in a horse-baited stable trap in southeast louisiana.a mosquito study based on collections from horse-baited stable traps was conducted in 1993 and 1994 at 3 sites in geographically and ecologically distinct areas of st. tammany parish (southeastern louisiana) to determine the major horse-feeding mosquito species that could be possible bridging and epidemic vectors of eastern equine encephalomyelitis virus. a total of 4,535 mosquitoes in 1993 and 23,906 in 1994 involving 26 species were collected, of which, depending on the site, culex salinarius, ...200312825665
surveillance for acute insecticide-related illness associated with mosquito-control efforts--nine states, 1999-2002.ground and aerial applications of insecticides are used to control populations of adult mosquitoes, which spread such diseases as west nile virus--related illness, eastern equine encephalitis, and dengue fever. this report summarizes investigations of illnesses associated with exposures to insecticides used during 1999-2002 to control mosquito populations in nine states (arizona, california, florida, louisiana, michigan, new york, oregon, texas, and washington) (estimated 2000 population: 118 mi ...200312855943
aaep tackles tough issues in the big easy. 200414736053
west nile virus activity--united states, august 4-10, 2004.during august 4-10, a total of 89 cases of human west nile virus (wnv) illness were reported from 14 states (alabama, arizona, california, florida, illinois, kentucky, louisiana, minnesota, mississippi, missouri, new mexico, north dakota, south dakota, and wyoming).200415306758
west nile virus activity--united states, august 11-17, 2004.during august 11-17, a total of 194 cases of human west nile virus (wnv) illness were reported from 17 states (alabama, arizona, california, colorado, florida, illinois, louisiana, maryland, minnesota, mississippi, missouri, new mexico, ohio, south dakota, texas, utah, and virginia).200415318160
west nile virus activity--united states, september 22-28, 2004.during september 22-28, a total of 180 cases of human west nile virus (wnv) illness were reported in the district of columbia (dc) and 24 states (alabama, arizona, california, georgia, illinois, iowa, kansas, kentucky, louisiana, maryland, michigan, minnesota, mississippi, missouri, montana, nebraska, nevada, new mexico, ohio, pennsylvania, texas, utah, wisconsin, and wyoming).200415457147
west nile virus activity--united states, october 6-12, 2004.during october 6-12, a total of 86 cases of human west nile virus (wnv) illness were reported from 18 states (arizona, florida, illinois, kansas, louisiana, michigan, minnesota, missouri, nevada, new jersey, new mexico, north dakota, ohio, oklahoma, pennsylvania, tennessee, texas, and utah).200415483530
prevalence of anthelmintic resistant cyathostomes on horse farms.to determine prevalence of anthelmintic resistance in cyathostome nematodes of horses in the southern united states.200415485051
west nile virus activity--united states, october 20-26, 2004.during october 20-26, a total of 80 cases of human west nile virus (wnv) illness were reported from 16 states (arizona, california, florida, iowa, kentucky, louisiana, michigan, mississippi, missouri, montana, nebraska, new york, ohio, south dakota, texas, and utah).200415514584
evaluation of a vessel-sealing device for laparoscopic granulosa cell tumor removal in standing mares.to describe a laparoscopic technique for granulosa cell tumor removal using a vessel sealing device (ligasuretrade mark) in standing mares.200616756611
temporal clinical exacerbation of summer pasture-associated recurrent airway obstruction and relationship with climate and aeroallergens in horses.to describe the seasonal pattern of clinical exacerbation of summer pasture-associated recurrent airway obstruction (spa-rao) in relation to climate and aeroallergens in horses.200616948614
equine rescue and response activities in louisiana in the aftermath of hurricanes katrina and rita. 200717669039
introduction: why beat a tired horse? 201121807703
the culex pipiens complex in the mississippi river basin: identification, distribution, and bloodmeal hosts.members of the culex pipiens complex are the primary vectors of st. louis encephalitis virus and west nile virus in the mississippi river basin (mrb). the cx. pipiens complex in the mrb is composed of 4 taxa: cx. p. pipiens form pipiens, cx. p. quinquefasciatus, hybrids between cx. p. pipiens f. pipiens and cx. p. quinquefasciatus, and cx. p. pipiens form molestus. three studies on bloodmeal hosts with large sample sizes have been conducted on members of the cx. pipiens complex in the mrb includ ...201223401948
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