| borrelia burgdorferi sensu lato and ehrlichia spp. in ixodes ticks from southern norway. | we report the results of a study of the prevalence of ehrlichia and borrelia species in 341 questing ixodes ricinus ticks from two locations in southern norway. the prevalences of borrelia burgdorferi sensu lato and ehrlichia spp. were, respectively, 16 and 11.5% at site 1 and 17 and 6% at site 2. prevalence and species composition of borrelia and ehrlichia varied with location and date of collection. the dominant borrelia species at both sites was borrelia afzelii, followed by borrelia burgdorf ... | 2001 | 11574588 |
| transport of ixodes ricinus infected with borrelia species to norway by northward-migrating passerine birds. | birds are capable of transporting ticks and, consequently, tick-borne pathogens over long distances and across geographical barriers such as oceans and deserts. the purpose of this study was to assess the prevalence of borrelia spp. in ticks transported by birds by using pcr. a total of 9768 northward-migrating passerine birds was examined for ticks at 4 bird observatories along the southern norwegian coast during their spring migration in 2003-2005. two of the bird observatories were located on ... | 2011 | 21771535 |
| prevalence of anaplasma phagocytophilum infection and effect on lamb growth. | abstract: background: a major challenge in sheep farming during the grazing season along the coast of south-western norway is tick-borne fever (tbf) caused by the bacteria anaplasma phagocytophilum that is transmitted by the tick ixodes ricinus. methods: a study was carried out in 2007 and 2008 to examine the prevalence of a. phagocytophilum infection and effect on weaning weight in lambs. the study included 1208 lambs from farms in sunndal ram circle in more and romsdal county in mid-norway, wh ... | 2011 | 21569524 |
| [health effects of climatic changes--possible consequences for norway]. | in the year 2100 a global mean temperature increase of 2 degrees c, and a 50 cm rise in sea level are expected. an escalation in the intensity and duration of heat waves will increase mortality, whilst higher temperatures in cold regions may reduce it. on a global scale, vector-borne diseases such as malaria, dengue, yellow fever and some types of viral encephalitis are likely to increase. 50 to 80 million more cases of malaria could occur annually. elevated temperatures and more frequent floods ... | 1997 | 9064811 |