low seroprevalence of human lyme disease near a focus of high entomologic investigate a low rate of reported human lyme disease adjacent to an area where the vector tick had become well established, we performed human and canine serosurveys and gathered data on environmental factors related to the risk of transmission. in march 1993, we obtained serum samples and conducted questionnaires that included information on outdoor activities, lot size, and frequency of deer sightings from 272 individuals living within a 5-km strip extending 12 km inland from a study site ...19968780454
multitarget test for emerging lyme disease and anaplasmosis in a serosurvey of dogs, maine, determine if the range of deer ticks in maine had expanded, we conducted a multitarget serosurvey of domestic dogs (canis lupus familiaris) in 2007. an extension of exposure to borrelia burgdorferi to the northern border and local transmission of anaplasma phagocytophilum throughout southern areas was found.201121529407
three sudden cardiac deaths associated with lyme carditis - united states, november 2012-july 2013.lyme disease is a multisystem illness caused by borrelia burgdorferi, a spirochete transmitted by certain species of ixodes ticks. approximately 30,000 confirmed and probable cases of lyme disease were reported in the united states in 2012, primarily from high-incidence states in the northeast (connecticut, delaware, maine, maryland, massachusetts, new hampshire, new jersey, new york, pennsylvania, rhode island, and vermont) and upper midwest (minnesota and wisconsin). common manifestations incl ...201324336130
strategies for reducing the risk of lyme borreliosis in north america.the incidence of lyme borreliosis continues to increase in the united states. in 1991, when lyme borreliosis first became a nationally reportable disease to the centers for disease control and prevention (cdc), a total of 9470 cases were reported; in contrast, by 2002 a total of 23,763 cases were reported, >2.5x the total in 1991. area-wide acaricides can be highly effective in killing nymphal ixodes scapularis, with >95% of nymphs killed in studies using cyfluthrin, deltamethrin, or carbaryl. t ...200616524769
deer browse resistant exotic-invasive understory: an indicator of elevated human risk of exposure to ixodes scapularis (acari: ixodidae) in southern coastal maine woodlands.we evaluated the relationships between forest understory structure and the abundance of questing adult and nymphal blacklegged ticks, ixodes scapularis say (acari: ixodidae), in three maine towns endemic for lyme disease, 2001-2003. in fragmented new england woodlands, over-abundant white-tailed deer, odocoileus virginianus zimmerman, overbrowse palatable species, allowing browse-resistant exotic-invasive species to replace native forest understory structures. we predicted there would be more ti ...200617162946
passive surveillance in maine, an area emergent for tick-borne 1989, a free-of-charge, statewide tick identification program was initiated in maine, 1 yr after the first ixodes scapularis say (=i. dammini spielman, clifford, piesman & corwin) ticks were reported in the state. this article summarizes data from 18 continuous years of tick submissions during which >24,000 ticks of 14 species were identified. data provided include tick stage, degree of engorgement, seasonal abundance, geographical location, host, and age of the person from whom the tick was ...200718047214
deer density and the abundance of ixodes scapularis (acari: ixodidae).the abundance of ixodes scapularis say (ixodes dammini spielman, clifford, piesman & corwin), the vector tick of the lyme disease spirochete and other human pathogens, is related to the presence of its primary reproductive stage host, white-tailed deer (odocoileus virginianus zimmerman). however, this relationship has not been quantified in terms that would guide wildlife management in areas in which the public is, or is likely to become, exposed to infected ticks. in this study, deer density an ...200312693846
potential for lyme disease in maine: deer survey of distribution of ixodes dammini, the tick vector.a survey of deer brought to tagging stations at 24 sites in main revealed the presence of the deer tick, ixodes dammini, on 5.1 percent of deer. ticks were found almost exclusively on deer from southwest coastal sites in the state. the potential for endemic lyme disease in coastal maine merits further study.19902305920
participation of birds (aves) in the emergence of lyme disease in southern maine.the contribution of migratory and resident birds to the introduction of lyme disease will vary with the degree to which various species expose themselves to, and are infested by, juvenile vector ticks, and their ability to support and transmit the infectious agent. to examine the relative contribution of various passerine species during the emergence of this disease, we compared the abundance and infection rates of the blacklegged tick, ixodes scapularis say, removed from mist-netted birds with ...19989615546
canine seroprevalence and the distribution of ixodes dammini in an area of emerging lyme disease.this study evaluates the relative usefulness of canine serosurveys to predict risk of exposure in an area of emerging lyme disease by comparing the distribution of canine seroprevalence with that of vector ticks. from 16 veterinary clinics throughout the state of maine, 828 canine sera were obtained during the heartworm-testing months of april and may 1989 and measured for anti-borrelia antibodies by enzyme-linked immunosorbent assay. in the same year, 1605 ticks, including 585 ixodes dammini, w ...19911928538
first records of amblyomma americanum, ixodes (ixodes) dentatus, and ixodes (ceratixodes) uriae (acari: ixodidae) from maine.the first records of 3 ixodid tick species collected in the state of maine are reported. a total of 23 records of the lone star tick, amblyomma americanum (l., 1758), in 11 counties from hosts with no history of travel outside the state demonstrates that this tick is now a resident of maine. ixodes dentatus marx, 1899 is recorded from waldo and lincoln counties, and ixodes uriae white, 1852 is recorded from matinicus rock in knox county. this is the first report of i. uriae from the eastern unit ...19989645873
deer ticks, ixodes dammini (acari: ixodidae), and lyme disease spirochetes, borrelia burgdorferi, in maine. 19883404548
the prevalence of borrelia burgdorferi seropositivity in an area endemic for lyme disease.we conducted a seroprevalence survey of antibodies to borrelia burgdorferi in west central wisconsin, an area endemic for lyme disease. one hundred and thirty-seven of 153 patients having blood drawn at the eau claire family medicine clinic and the associated rural augusta practice participated in the study and were tested for the presence of antibodies to b burgdorferi and questioned about lyme disease risk factors. an enzyme-linked immunosorbent assay showed that 15 (10.9%) of the 137 persons ...19902293487
ixodes dammini and borrelia burgdorferi in northern new england and upstate new york. 19873585637
infection and co-infection rates of anaplasma phagocytophilum variants, babesia spp., borrelia burgdorferi, and the rickettsial endosymbiont in ixodes scapularis (acari: ixodidae) from sites in indiana, maine, pennsylvania, and total, 394 questing adult blacklegged ticks, ixodes scapularis say (acari: ixodidae), collected at four sites were analyzed by polymerase chain reaction (pcr) for five microbial species: anaplasma phagocytophilum, babesia microti, babesia odocoilei, borrelia burgdorferi, and the rickettsial i. scapularis endosymbiont. identities of genetic variants of a. phagocytophilum were determined by sequencing a portion of the 16s dna. in 55% of infected ticks (193/351), a single agent was detected. in ...200818402145
human babesiosis, maine, usa, 1995-2011.we observed an increase in the ratio of pathogenic babesia microti to b. odocoilei in adult ixodes scapularis ticks in maine. risk for babesiosis was associated with adult tick abundance, borrelia burgdorferi infection prevalence, and lyme disease incidence. our findings may help track risk and increase the focus on blood supply screening.201425272145
antibody testing and lyme disease risk.lyme disease test results for >9,000 dogs were collected from participating veterinary clinics. testing was conducted by using the idexx 3dx kit, used widely by maine veterinarians to screen clinically normal dogs during heartworm season. this study demonstrates how this test can be a valuable public health disease surveillance tool.200515890128
predisposing factors for individuals' lyme disease prevention practices: connecticut, maine, and montana.this study examined factors that predispose individuals to protect against lyme disease.19979431299
borrelia garinii in seabird ticks (ixodes uriae), atlantic coast, north america.borrelia garinii is the most neurotropic of the genospecies of b. burgdorferi sensu lato that cause lyme disease in europe, where it is transmitted to avian and mammalian reservoir hosts and to humans by ixodes ricinus. b. garinii is also maintained in an enzootic cycle in seabirds by i. uriae, a tick found at high latitudes in both the northern and southern hemispheres. to determine whether b. garinii is present in seabird ticks on the atlantic coast of north america, we examined 261 i. uriae t ...200617326943
abundance of ixodes scapularis (acari: ixodidae) after the complete removal of deer from an isolated offshore island, endemic for lyme disease.monhegan is an isolated 237-ha island lying 16 km off the coast of maine. introduced to the island in 1955, white-tailed deer, odocoileus virginianus zimmerman, reached a density of approximately 37/km2 by the mid-1990s. black-legged ticks, ixodes scapularis say, first noticed in the late 1980s, flourished thereafter. norway rats (rattus norvegicus berkenhout) on monhegan are highly infected with borrelia burgdorferi johnson, schmidt, hyde, steigerwalt, and brenner, the agent of lyme disease. by ...200415311475
role of bird migration in the long-distance dispersal of ixodes dammini, the vector of lyme evaluate the role of migratory birds in the long-distance dispersal of ixodes dammini ticks and in the spread of lyme disease, a 6-year study of migrating birds to an offshore new england island was conducted during 1989-1994. i. dammini are not endemic on this island, therefore allowing assessment of long-distance tick dispersal rather than local infestation. of 11,324 spring migrants examined, 1.2% were infested with i. dammini. of 8607 fall migrants examined, 0.2% were infested. of nymphal ...19968656000
genotypic diversity of an emergent population of borrelia burgdorferi at a coastal maine island recently colonized by ixodes scapularis.abstract the recent range expansion of ixodes scapularis has been accompanied by the emergence of borrelia burgdorferi. the development of genetic diversity in b. burgdorferi at these sites of emergence and its relationship to range expansion is poorly understood. we followed colonization of i. scapularis on a coastal maine island over a 17-year period. b. burgdorferi's emergence was documented, as was expansion of ospc strain diversity. ticks collected from rodents and vegetation were examine ...201222217172
norway rats as reservoir hosts for lyme disease spirochetes on monhegan island, determine whether the agent of lyme disease, borrelia burgdorferi, may be maintained in the absence of its usual white-footed mouse reservoir host, ixodes dammini ticks from an island where mice are absent were examined. prevalence of spirochetal infection was described for ticks removed from mammals, birds, and vegetation on monhegan island, maine. forty percent of adult i. dammini removed from vegetation were infected. norway rats were heavily infested with ticks, and > 60% of such ticks co ...19938354910
immunization with a recombinant subunit ospa vaccine markedly impacts the rate of newly acquired borrelia burgdorferi infections in client-owned dogs living in a coastal community in maine, north america, borrelia burgdorferi is the causative bacterial agent of canine lyme borreliosis and is transmitted following prolonged attachment and feeding of vector ticks, ixodes scapularis or ixodes pacificus. its prevention is predicated upon tick-avoidance, effective on-animal tick control and effective immunization strategies. the purpose of this study is to characterize dogs that are newly seropositive for borrelia burgdorferi infection in relation to compliant use of a recombinant os ...201525890386
Displaying items 1 - 24 of 24