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epidemiology of infection by nontuberculous mycobacteria. mycobacterium avium, mycobacterium intracellulare, and mycobacterium scrofulaceum in acid, brown-water swamps of the southeastern united states and their association with environmental variables.mycobacterium avium, mycobacterium intracellulare, and mycobacterium scrofulaceum (mais) organisms were isolated and identified from waters, soils, aerosols, and droplets ejected from water collected from four geographically separate aquatic environments (okefenokee swamp, ga; dismal swamp, va; claytor lake, va; and cranberry glades, wv) during several seasons. recovery of mais was significantly higher from waters, soils, and aerosols collected from the two acid, brown-water swamps located in th ...19921736730
culture and serologic survey for mycobacterium avium subsp. paratuberculosis infection among southeastern white-tailed deer (odocoileus virginianus).from july 1998 through october 2002, radiometric culture (ileocecal lymph node, mesenteric lymph node, and feces) and serologic testing by enzyme-linked immunosorbent assay (elisa) were used to survey white-tailed deer (odocoilens virgianus) from the soutlheastern united states for infection by mycobacterium avium subsp. paratuberculosis (mptb), the causative agent of paratuberculosis (johne's disease). mycobacterium avium subsp. paratuberculosis was isolated from the ileocecal lymph node of one ...200415362831
epidemiology of infection by nontuberculous mycobacteria. vi. identification and use of epidemiologic markers for studies of mycobacterium avium, m. intracellulare, and m. scrofulaceum.a comparison of clinical and environmental (e.g., soil, dust, water, and aerosol) isolates of the mycobacterium avium-intracellulare and m. scrofulaceum (mais) group has been made. the frequency of m. avium-intracellulare clinical isolates able to grow without oadc enrichment, able to grow at 43 degrees c, or express resistance to streptomycin or cadmium was significantly higher than those among environmental isolates. only the frequency of clinical m. scrofulaceum isolates able to grow at 43 de ...19863729160
epidemiology of infection by nontuberculous mycobacteria. vii. absence of mycobacteria in southeastern groundwaters.using the fluorochrome auramine-o, direct microscopic counts of log phase cells of mycobacterium avium, m. intracellulare, and m. scrofulaceum (mais) group showed excellent correlations with viable spread-plate counts. accordingly, an enumeration of total acid-fast and mais cells by stain and culture (respectively) in groundwaters from three united states regions that differ in their incidence of human infection by mais was undertaken. of 30 state-monitored, undisinfected wells, 11 were in georg ...19872441632
primary mycobacterium avium complex infections correlate with lowered cellular immune reactivity in matschie's tree kangaroos (dendrolagus matschiei).the national zoological park has maintained a breeding colony of matschie's tree kangaroos (dendrolagus matschiei) since 1975 with a documented history and continued prevalence of mycobacterium avium complex (mac) infections. no evidence of immunosuppressive retrovirus infections or loss of heterozygosity that may have led to an immune dysfunction in these animals was found. isolates of mac organisms from affected tree kangaroos and from their environment had no common restriction fragment dna t ...19989815225
phage typing of the mycobacterium avium-intracellulare-scrofulaceum complex. a study of strains of diverse geographic and host origin.a total of 339 strains of the mycobacterium avium-intracellulare-scrofulaceum complex were phage typed using our previously described technique and 11 typing phages. these included 235 strains of human origin obtained from state health laboratories in virginia, georgia, florida, and arkansas, 26 strains isolated from persons with aids, 38 strains isolated from animals, and 40 environmental isolates. a phage-typing scheme was developed that denotes sensitivity to 8 primary typing phages: the jf g ...19854026062
johne's disease in a free-ranging white-tailed deer from virginia and subsequent surveillance for mycobacterium avium subspecies paratuberculosis.johne's disease (paratuberculosis) was diagnosed in a 2-yr-old, male, free-ranging white-tailed deer (odocoileus virginianus) from fauquier county, virginia, usa, based on histopathology and culture for mycobacterium avium subspecies paratuberculosis. clinical and pathologic findings included emaciation; loss of body fat; chronic diarrhea; severe, chronic, diffuse granulomatous colitis with intrahistiocytic acid-fast bacilli; moderate, chronic granulomatous lymphadenitis with intrahistiocytic ac ...200919204350
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