| a hybrid swarm of ixodes dammini and ixodes scapularis (acari: ixodidae). | | 1989 | 2767558 |
| ectoparasites of opossums and raccoons in southeastern georgia. | twelve species of ectoparasites (four fleas, three ticks, three chiggers, one macronyssid mite, and one atopomelid mite) were recovered from 42 opossums, didelphis virginiana kerr, live-trapped from september 1992 through april 1994 in southeastern georgia. the fleas, ctenocephalides felis (bouché) (prevalence = 19%) and polygenis gwyni (c. fox) (36%); the ticks, dermacentor variabilis (say) (40%) and ixodes scapularis say (19%); and the macronyssid mite, ornithonyssus wernecki (fonseca) (21%), ... | 1994 | 7815408 |
| ability of the lyme disease spirochete borrelia burgdorferi to infect rodents and three species of human-biting ticks (blacklegged tick, american dog tick, lone star tick) (acari:ixodidae). | the infectivity of a diverse collection of borrelia burgdorferi strains from north america for mice was determined as a prelude to vector competence experiments with the 3 primary human-biting tick species in the eastern united states (ixodes scapularis say, dermacentor variabilis (say), amblyomma americanum (l.)]. of the 34 b. burgdorferi strains inoculated into mice, 29 were infectious; the exceptions were 5 isolates from texas. vector competence experiments were conducted with 2 strains from ... | 1997 | 9220680 |
| ticks, lyme disease spirochetes, trypanosomes, and antibody to encephalitis viruses in wild birds from coastal georgia and south carolina. | ticks and blood samples were collected from wild birds mist-netted on st. catherine's island, georgia, and at the wedge plantation in coastal south carolina in 1994 and 1995. immature stages of 5 species of ixodid ticks were recovered from 10 of 148 (7%) birds belonging to 6 species in georgia, whereas 6 ixodid species were recovered from 45 of 259 (17%) birds representing 10 avian species in south carolina. borrelia burgdorferi sensu lato was isolated from 27 of 120 (23%) screened ticks (ixodes ... | 1997 | 9406799 |
| ticks (acari: ixodidae) and spirochetes (spirochaetaceae: spirochaetales) recovered from birds on a georgia barrier island. | from september 1997 through july 1999, 300 individuals and 46 species of birds were mist-netted and screened for ticks and spirochetes on st. catherine's island, liberty county, ga. seventy-six (25%) of the birds were parasitized by a meal intensity of 4.6 ticks. seasonally, more birds were infested with ticks during the summer (50% in 1998, 34% in 1999) than in spring (15% in 1998, 11% in 1999) or fall (21% in 1997, 20% in 1998), mainly because of severe infestations on some birds by immature s ... | 2001 | 11296828 |
| genetic heterogeneity of borrelia burgdorferi sensu lato in the southern united states based on restriction fragment length polymorphism and sequence analysis. | fifty-six strains of borrelia burgdorferi sensu lato, isolated from ticks and vertebrate animals in missouri, south carolina, georgia, florida, and texas, were identified and characterized by pcr-restriction fragment length polymorphism (rflp) analysis of rrf (5s)-rrl (23s) intergenic spacer amplicons. a total of 241 to 258 bp of intergenic spacers between tandemly duplicated rrf (5s) and rrl (23s) was amplified by pcr. msei and drai restriction fragment polymorphisms were used to analyze these ... | 2001 | 11427560 |
| prevalence of the agent of human granulocytic ehrlichiosis in ixodes scapularis (acari: ixodidae) in the coastal southeastern united states. | human granulocytic ehrlichiosis (hge) is an emerging tick-borne disease recently recognized in the united states. the blacklegged tick, ixodes scapularis say, is the principle vector in the eastern united states. the disease has been commonly reported in the northeastern and upper midwestern states; however, suitable vectors and reservoir hosts exist in the southeast. to assay the prevalence of the hge agent in vector ticks, we screened 818 individual i. scapularis from 15 locations in south car ... | 2002 | 11931023 |
| ticks and tick-borne pathogens and putative symbionts of black bears (ursus americanus floridanus) from georgia and florida. | ticks were collected from 38 black bears (ursus americanus floridanus) from northwestern florida (n = 18) from 2003 to 2005 and southern georgia (n = 20) in 2006. five species (amblyomma americanum, a. maculatum, dermacentor variabilis, ixodes scapularis, and i. affinis) were collected from florida bears, and 4 species (a. americanum, a. maculatum, d. variabilis, i. scapularis) were collected from bears in georgia. ixodes scapularis was the most frequently collected tick, followed by d. variabil ... | 2009 | 19413369 |
| detection of anaplasma phagocytophilum in ixodid ticks from equine-inhabited sites in the southeastern united states. | abstract anaplasma phagocytophilum is a vector-borne, obligate intracellular bacterium that invades the neutrophils and eosinophils of infected individuals, causing granulocytic anaplasmosis. equine cases have previously been reported in the united states from california, florida, and connecticut, but limited surveillance studies in the southeast have been conducted. the objective of this study was to determine a. phagocytophilum prevalence in ixodes scapularis ticks at southeastern u.s. horse ... | 2012 | 22214269 |
| evaluation of ixodes scapularis, amblyomma americanum, and dermacentor variabilis (acari: ixodidae) from georgia as vectors of a florida strain of the lyme disease spirochete, borrelia burgdorferi. | the ability of three common tick species from georgia to maintain and transmit the causative agent of lyme disease, borrelia burgdorferi, was compared under laboratory conditions. a b. burgdorferi cotton rat isolate (mi-6) from florida was selected as a strain from the south, and the sh2-82 isolate from new york was used as a positive control. amblyomma americanum (l.) and dermacentor variabilis (say) did not transmit the mi-6 isolate from inoculated hamsters to naive laboratory mice, and nympha ... | 1995 | 7650697 |
| ectoparasites and gastrointestinal helminths of southern flying squirrels in southeast georgia. | southern flying squirrels (glaucomys volans) from southeastern georgia were examined for ectoparasites and gastrointestinal helminths. ten species of ectoparasites were recovered, including 3 species of sucking lice (hoplopleura trispinosa, microphthirus uncinatus, and neohaematopinus sciuropteri), 1 species of flea (orchopeas howardi), 2 species of ticks (amblyomma maculatum and ixodes scapularis), 3 species of mesostigmatid mites (androlaelaps casalis, a. fahrenholzi, and haemogamasus ambulans ... | 2000 | 11128479 |
| tick infestations of birds in coastal georgia and alabama. | mist-netted birds were examined for ticks on jekyll island, glynn co., georgia (32 bird species) in 1996-1998, and at fort morgan, baldwin co., alabama (36 species) in 1998 during fall migration. sixty-two (14.7%) of 423 birds from jekyll island and 22 (13.3%) of 165 birds from fort morgan were infested with ticks. the mean number of ticks per infested bird was 2.0 on jekyll island and 6.3 at fort morgan. ten species of birds were infested with ticks on jekyl1 island where 87% of all ticks were ... | 2000 | 10780541 |
| multivariate morphometrics of larvae of the blacklegged tick (ixodes scapularis) with notes on nomenclature. | a morphological study of the larval stage of the blacklegged tick, ixodes scapularis, was conducted to further examine congruence between northern and southern morphotypes. preliminary anova revealed that 9 characters were not significantly different; thus 28 characters were used in analyses of a total of 8 groups of i. scapularis originally from minnesota, massachusetts, maryland, missouri, north carolina, georgia, f1 progeny of reciprocal crosses of ticks from massachusetts and georgia, and i. ... | 1996 | 8973400 |
| ticks (acari: ixodidae) in bulloch county, georgia. | an 18-mo study was conducted in bulloch county, georgia, to determine tick species composition, seasonal activity of individual tick species, and host-tick associations. the following 7 methods of tick collection were included: (1) live trapping of potential host animals, (2) checking wild game, (3) drag sampling, (4) carbon dioxide attraction, (5) checking livestock, road kills, nests, and burrows, (6) samples submitted from veterinarians, and (7) ticks collected by local residents and submitte ... | 1996 | 8742526 |
| ticks parasitizing humans in georgia and south carolina. | from 1990 through 1995, 913 ticks removed from 460 human patients in georgia or south carolina were identified and recorded. the majority of these specimens (758, 83.0%) were lone star ticks, amblyomma americanum. one hundred and four (11.4%) american dog ticks dermacentor variabilis, 36 (3.9%) blacklegged ticks ixodes scapularis, 9 (1.0%) gulf coast ticks amblyomma maculatum, and 6 (0.7%) brown dog ticks rhipicephalus sanguineus were also recovered. all active stages (larvae, nymphs, and adults ... | 1996 | 8636862 |
| nocturnal questing by adult blacklegged ticks, ixodes scapularis (acari: ixodidae). | quantitative tick drag samples were taken at various times during the day and night from february through april 1994 on st. catherines island or on sapelo island, georgia. for each month, there was no statistical difference between the numbers of adult blacklegged ticks, ixodes scapularis, collected during any hour of daylight or darkness on st. catherines island, adult i. scapularis also quested during both day and night on sapelo island, but on this island significantly more ticks were collect ... | 1996 | 8627491 |
| multivariate morphometric discrimination of nymphal and adult forms of the blacklegged tick (acari: ixodidae), a principal vector of the agent of lyme disease in eastern north america. | a morphological study of postlarval stages of the blacklegged tick, ixodes scapularis say, was conducted to examine congruence between northern (formerly i. dammini spielman, clifford, piesman & corwin) and southern morphotypes. the character set totaled 17 for females, 25 for males, and 28 for nymphs. populations from 6 geographic areas, f1 progeny from reciprocal crosses between i. scapularis from massachusetts and georgia, and i. pacificus cooley & kohls from california were measured. charact ... | 1995 | 8551506 |
| natural occurrence and characterization of the lyme disease spirochete, borrelia burgdorferi, in cotton rats (sigmodon hispidus) from georgia and florida. | this is the first report of natural infection by borrelia burgdorferi in the cotton rat sigmodon hispidus. nine b. burgdorferi isolates were obtained from ear tissues, urinary bladders, or both, by culturing tissues in bskii medium. the rat from which the si-3 isolate was cultured was from the same site (sapelo island, georgia) as an infected cotton mouse peromyscus gossypinus and ixodes scapularis tick reported previously. the 8 b. burgdorferi isolates from rats in florida included 1 (ai-1) fro ... | 1995 | 7876974 |
| variation in ribosomal dna internal transcribed spacers 1 among eastern populations of ixodes scapularis (acari: ixodidae). | the base sequence of the internal transcribed spacer 1 (its 1) of ribosomal dna of the tick ixodes scapularis say (= i. dammini spielman, clifford, piesman & corwin) was determined to assess genetic divergence between populations along the eastern (atlantic) seaboard of the united states. twenty sequences were obtained from localities down the eastern margin of the species's range: 10 from the southeast (georgia and florida), seven from the middle east (north carolina, maryland), and three from ... | 1995 | 7616527 |
| recent discovery of widespread ixodes affinis (acari: ixodidae) distribution in north carolina with implications for lyme disease studies. | ixodes affinis, which is similar morphologically to ixodes scapularis, is widely distributed in north carolina. collections have documented this species in 32 of 41 coastal plain counties, but no piedmont or mountain counties. this coastal plain distribution is similar to its distribution in georgia and south carolina, where it is considered an enzootic vector of borrelia burgdorferi sensu stricto. an updated list of hosts for i. affinis in the u.s.a. is included, increasing the number to 15 mam ... | 2010 | 20618664 |
| comparison of the spirochete borrelia burgdorferi s. l. isolated from the tick ixodes scapularis in southeastern and northeastern united states. | thirty-five strains of the lyme disease spirochete borrelia burgdorferi sensu lato (b. burgdorferi s. l.) were isolated from the blacklegged tick vector ixodes scapularis in south carolina, georgia, florida, and rhode island. they were characterized by pcr-restriction fragment length polymorphism (rflp) analysis of rrf (5s)-rrl (23s) intergenic spacer amplicons. pcr-rflp analysis indicated that the strains represented at least 3 genospecies (including a possible novel genospecies) and 4 differen ... | 2008 | 18576863 |
| parasitism of lizards by immature stages of the blacklegged tick, ixodes scapularis (acari, ixodidae). | from 1982-1985 and 1993-1999, a total of 309 individual reptiles, mostly lizards and snakes, belonging to 12 species (american alligator, six lizard species, five snake species) was captured on st. catherine's island, liberty county, georgia, usa, and examined for ticks. three lizard species, the broad-headed skink eumeces laticeps, southeastern 5-lined skink eumeces inexpectatus, and eastern glass lizard ophisaurus ventralis, were severely infested with larvae and nymphs of the blacklegged tick ... | 2002 | 12537298 |
| ticks parasitizing dogs in northwestern georgia. | from january 1998 through september 1999, 324 dogs in three northwestern georgia counties were examined for ticks. six species of ticks were recovered. the three most commonly collected ticks were the american dog tick, dermacentor variabilis (say) (310 male male, 352 female female; prevalence, 97%; mean intensity 2.1); the brown dog tick, rhipicephalus sanguineus (latreille) (118 male male, 119 female female, 38 nymphs; prevalence, 22%; mean intensity, 3.8); and the lone star tick, amblyomma am ... | 2002 | 11931241 |
| isolation and transmission of the lyme disease spirochete from the southeastern united states. | the isolation of the lyme disease spirochete (borrelia burgdorferi) from the southeastern united states is reported. three isolates, two from cotton mice (peromyscus gossypinus) and one from the black-legged tick (ixodes scapularis), were recovered from sapelo island, georgia, in july and september 1991. the spirochetes were characterized by indirect fluorescent antibody assay using a battery of five monoclonal antibodies, by sodium dodecyl sulfate/polyacrylamide gel electrophoresis (sds/page) o ... | 1993 | 8346258 |
| ectoparasites and other epifaunistic arthropods of sympatric cotton mice and golden mice: comparisons and implications for vector-borne zoonotic diseases. | ectoparasite and epifaunistic arthropod biodiversity and infestation parameters were compared between 2 sympatric small rodent species, the cotton mouse (peromyscus gossypinus (le conte)) and golden mouse (ochrotomys nuttalli (harlan)), in southern georgia from 1992 to 2003. because the cotton mouse is known to be a reservoir of more vector-borne zoonotic pathogens than the golden mouse, we hypothesized that it would be parasitized by more ectoparasites that are known to be vectors of these path ... | 2004 | 15715219 |
| attachment sites of four tick species (acari: ixodidae) parasitizing humans in georgia and south carolina. | from june 1995 through january 1998, 677 tick specimens were submitted by 521 humans from 14 states. analysis was limited to specimens originating in georgia and south carolina, representing 87.3% of total submissions. attachment sites were specified in 367 specimens (62.3%). the american dog tick, dermacentor variabilis (say), a vector of the agent of rocky mountain spotted fever, favored the head and neck in 59% of attached specimens. the lone star tick, amblyomma americanum (l.), a strongly i ... | 1999 | 10337108 |