| blood parasites of sheep in the netherlands. i. anaplasma mesaeterum sp.n. (rickettsiales, anaplasmataceae). | on two occasions an anaplasm was isolated from sheep on the dutch island of ameland. the organism proved to be highly pathogenic for splenectomised sheep; a non-splenectomised animal recovered spontaneously after the packed cell volume had decreased by 40%. treatment with oxytetracycline was effective. its pathogenicity for goats appeared to be low, and the organism was apparently not infective to splenectomised cattle. this anaplasm differs from anaplasma ovis in that less than 30% of the organ ... | 1979 | 419513 |
| [borrelia burgdorferi from ixodes ricinus ticks on ameland]. | ixodes ricinus ticks collected from the north sea island of ameland, the netherlands, were screened for the presence of borrelia spirochaetes. the present authors used ifat on tick gut preparations and identified borrelia in 31 per cent of the adult ticks and 16 per cent of the nymphs collected from the dunes and 45 per cent of the nymphs collected from the forests. in vitro cultivation of borrelia sp. isolated from the adult ticks and its subsequent recognition by b. burgdorferi-specific monocl ... | 1989 | 2688191 |
| infection rates of borrelia burgdorferi in different instars of ixodes ricinus ticks from the dutch north sea island of ameland. | between 1988 and 1993, a total of 7173 i. ricinus ticks, predominantly, were collected from the vegetation on the dutch north sea island of ameland. a proportion of the ticks (n = 547) was screened for the presence of borrelia by immunofluorescence. infection rates of borrelia varied, in nymphs (n = 347) from 13% to 46% and in adults, (n = 122) from 20% to 43%. the infection rate in larvae (n = 84) collected in 1993 was 21%, showing that transovarial transmission of b. burgdorferi occurs in the ... | 1994 | 7628258 |
| detection of borrelia burgdorferi sensu lato by pcr in questing ixodes ricinus larvae from the dutch north sea island of ameland. | in may 1995, 61 ixodes ricinus larvae were collected from vegetation on the dutch north sea island of ameland. fifty-seven lysates (94%) were analysed for the presence of borrelia dna by the polymerase chain reaction (pcr), which amplified the intergenic spacer region between the 5s and 23s rrna genes. three samples (5%) were positive and hybridization of the pcr product to genomic group-specific probes revealed that two larvae were infected with borrelia afzelii and group vs116, respectively an ... | 1996 | 8771771 |
| small risk of developing symptomatic tick-borne diseases following a tick bite in the netherlands. | in the netherlands, the incidence of lyme borreliosis is on the rise. besides its causative agent, borrelia burgdorferi s.l., other potential pathogens like rickettsia, babesia and ehrlichia species are present in ixodes ricinus ticks. the risk of disease associated with these microorganisms after tick-bites remains, however, largely unclear. a prospective study was performed to investigate how many persons with tick-bites develop localized or systemic symptoms and whether these are associated w ... | 2011 | 21310036 |