| spotted fever group rickettsiae in ticks feeding on humans in northwestern spain: is rickettsia conorii vanishing? | during a 7-year study, we identified and analyzed by pcr 4,049 ticks removed from 3,685 asymptomatic patients in castilla y león (northwestern spain). a total of 320 ticks (belonging to 10 species) were pcr-positive for rickettsiae. comparison of amplicon sequences in databases enabled us to identify eight different spotted fever group (sfg) rickettsiae: rickettsia slovaca, rickettsia sp. irs3/irs4, r. massiliae/bar29, r. aeschlimannii, rickettsia sp. rpa4/dns14, r. helvetica, rickettsia sp. dms ... | 2006 | 17114733 |
| detection of antibodies to tick salivary antigens among patients from a region of spain. | with a view to determine which tick species bite humans most frequently in the province of soria (spain) and to know whether these species act as vectors of rickettsia conorii and/or borrelia burgdorferi, we analysed the presence of antibodies against salivary proteins of several tick species and of antibodies against r. conorii and b. burgdorferi sensu lato in 102 samples of serum. the sera were collected from 63 patients who were treated for tick bites at the health services of the soria healt ... | 2004 | 15012027 |
| [seroprevalence of the infections caused by borrelia burgdorferi and rickettsia conorii in humans and dogs in primary health care of san andreas del rabanedo (leon, spain)]. | positive results in infections of borrelia burgdorferi and rickettsia conorii in human and canine population is studied in order to understand the situation of both in humans, and at the same time discover the importance of the dog as an indicator of these agents among those in the health area of san andrés del rabanedo, león. | 1997 | 9546860 |
| canine seroprevalence of rickettsia conorii infection (mediterranean spotted fever) in castilla y león (northwest spain). | a seroepidemiological study was conducted in 308 dogs to determine the presence of antibodies to rickettsia conorii, using an indirect immunofluorescence assay (ifa). seven of the provinces of the castilla y león region (burgos, león, palencia, salamanca, soria, valladolid, and zamora) were covered by the study. of the 308 dogs analysed, 72 (23.4%) showed significant titers by ifa (1/40 or higher). seroprevalences were significantly different between provinces of origin of the animals. these wer ... | 1995 | 8549737 |
| antigens of rickettsia conorii recognized by seropositive healthy people from salamanca (central-west spain). | the antigenic reactivity in western immunoblotting assay of individual rickettsia conorii components with sera of healthy people living in salamanca province, an endemic zone of mediterranean spotted fever, is evaluated. polypeptides of molecular weights 100 kda (92.7%), 135 kda (75.6%), 160 kda (70.7%) and 115 kda (48.8%) were recognized by a higher proportion of sera with indirect immunofluorescent antibody test titers > or = 1:80. reaction with apparent rickettsial lipopolysaccharide was foun ... | 1993 | 8472802 |
| [seroprevalence of coxiella burnetii and rickettsia conorii infection in the province of soria]. | determine the antibodies prevalence against coxiella burnetii and rickettsia conorii in soria (spain). | 1993 | 8305552 |
| mediterranean spotted fever in salamanca, spain. epidemiological study in patients and serosurvey in animals and healthy human population. | mediterranean spotted fever is a spotted fever group rickettsiosis caused by rickettsia conorii. the fever has a recognized incidence in large geographic areas, and its presence in salamanca province (spain) has been well documented since 1981. this work presents the results of the centralized prospective survey carried out in this area and was designed to study the epidemiological behavior of the disease and the prevalence of antibodies against r. conorii among animals and healthy human populat ... | 1989 | 2575869 |
| prevalence of antibodies to rickettsia conorii coxiella burnetii and rickettsia typhi in salamanca province (spain). serosurvey in the human population. | the salamanca province of spain is an endemic zone for mediterranean spotted fever. in this area, only one case of q fever has been reported and typhus group rickettsial diseases have never been diagnosed. to obtain a panoramic view of the presence of antibodies to the most ubiquitous rickettsial agents, 400 sera specimens from a statistically representative sample of the human population of salamanca city and its surrounding province were subjected to indirect microimmunofluorescent test for an ... | 1990 | 2123799 |
| role of lagomorpha in the wild cycle of rickettsia conorii in salamanca (spain). | in an endemic zone for mediterranean spotted fever levels of antibodies to r. conorii were evaluated in serum samples from wild rabbits (orytolagus cuniculus) and hares (lepus granatensis) using an indirect microimmunofluorescence antibody test. the results of the study show that the wild rabbit may carry out in this area an important function in the maintenance of r. conorii in nature. | 1992 | 1572424 |