| rickettsia in texas. | since the first reported case in 1941, rocky mountain spotted fever in humans has been reported from many areas of texas, with two major foci, one located in the north-central region and the other in the eastern region of the state. during the period 1979-1988, 421 cases of rmsf were reported, reaching 108 cases in 1983 and declining in subsequent years. statewide surveillance programs to detect spotted fever group rickettsiae in tick populations were initiated in 1976. in recent years, the sfg ... | 1990 | 2378448 |
| borrelia, ehrlichia, and rickettsia spp. in ticks removed from persons, texas, usa. | data regarding the type, frequency, and distribution of tick-borne pathogens and bacterial agents are not widely available for many tick species that parasitize persons in the southern united states. we therefore analyzed the frequency and identity of pathogens and bacterial agents in ticks removed from humans and subsequently submitted to the texas department of state health services, zoonosis control program, from october 1, 2004, through september 30, 2008. the data showed associations of bac ... | 2010 | 20202419 |
| spirochetemia caused by borrelia turicatae infection in 3 dogs in texas. | spirochetemia was diagnosed in 2 siberian huskies and a rottweiler from the northwestern region of texas between june 1999 and october 2001. clinical findings were nonspecific; tick exposure was documented in 2 of the dogs. hematologic abnormalities included anemia (n=2), neutrophilia (n=2, including 1 with a left shift), lymphopenia (n=3), eosinopenia (n=3), and thrombocytopenia (n=2). one anemic dog had a positive coombs' test. in 1 dog, western blot analysis of serum yielded multiple positive ... | 2007 | 17523100 |
| prevalence of bartonella species, haemoplasma species, ehrlichia species, anaplasma phagocytophilum, and neorickettsia risticii dna in the blood of cats and their fleas in the united states. | ctenocephalides felis were killed and collected from 92 cats in alabama, maryland, and texas. the fleas and blood from the corresponding cat were digested and assessed in polymerase chain reaction assays that amplify dna of ehrlichia species, anaplasma phagocytophilum, neorickettsia risticii, mycoplasma haemofelis, 'candidatus m haemominutum' and bartonella species. dna consistent with b henselae, b clarridgeiae, m haemofelis, or 'candidatus m haemominutum' was commonly amplified from cats (60.9 ... | 2006 | 16290092 |
| ehrlichia prevalence in amblyomma americanum, central texas. | | 2004 | 15338551 |
| was bullis fever actually ehrlichiosis? | | 1988 | 3184365 |
| focus of human parasitism by the brown dog tick, rhipicephalus sanguineus (acari: ixodidae). | throughout most of its range, the brown dog tick, rhipicephalus sanguineus (latreille), prefers dogs as a host, but human bites occasionally occur in the mediterranean region and central america; historically, this species has rarely bitten humans in the united states. a focus of 15 human bite cases by this tick is reported from four air force bases located within 200 miles of each other in north central texas and southwestern oklahoma. the sudden appearance of numerous documented bite cases ind ... | 1989 | 2585458 |
| babesia canis rossi infection in a texas dog. | a 5-month-old intact male boerboel dog, imported from south africa 1 week previously, was presented to a texas veterinarian for lethargy, anorexia, and labored breathing. the dog was febrile, anemic, leukopenic, thrombocytopenic, and slightly azotemic. results of the idexx snap-4dx enzyme immunoassay were negative for dirofilaria immitis antigen and antibodies against ehrlichia canis, borrelia burgdorferi, and anaplasma phagocytophilum. an edta blood sample analyzed at oklahoma state university ... | 2011 | 21790699 |
| white-tailed deer as a potential reservoir of ehrlichia spp. | we determined the antibody prevalence to ehrlichia spp., in white-tailed deer (odocoileus virginianus) and the geographic distribution of seropositive animals in 84 counties in alabama, arkansas, florida, georgia, illinois, kentucky, louisiana, maryland, massachusetts, mississippi, missouri, north carolina, south carolina, tennessee, texas, virginia, and west virginia (usa). using an indirect fluorescent antibody test we detected antibodies (> or = 1:128) to this bacterium in 544 (43%) of 1269 d ... | 1994 | 8028099 |
| immunoblot analysis of the immunoglobulin g response to ehrlichia canis in dogs: an international survey. | historically, considerable variation has been reported in the type and severity of clinical and hematologic abnormalities associated with canine ehrlichiosis. because of difficulties associated with the isolation of intracellular monocytic ehrlichia species in tissue culture systems, few e. canis isolates are available for comparative microbiologic studies. to address the issue of potential e. canis antigenic diversity in different regions of the world, dog sera reactive by indirect fluorescent ... | 1997 | 9087922 |
| bullis fever: a vanished infection of unknown etiology. | camp bullis, texas, is an active training facility for the u.s. army and air force with a storied history dating back to the late 19th century. in the early 1940s, an epidemic of a seasonal tick-borne rickettsial-like illness occurred at camp bullis; the last case was reported in 1947. to date, the etiology of this disease has remained elusive. in an attempt to retrospectively identify the causal pathogen, we surveyed camp bullis for the presumed tick vector with intent to screen molecularly for ... | 2004 | 15605930 |