title: Spotted-fever group Rickettsia in Dermacentor variabilis, Maryland.
abstract: Three-hundred ninety-two adult Dermacentor variabilis were collected from six Maryland counties during the spring, summer, and fall of 2002. Infection prevalence for spotted fever group Rickettsia was 3.8%, as determined by polymerase chain reaction. Single strand conformational polymorphism (SSCP) analysis followed by sequencing indicated that all infections represented a single rickettsial taxon, Rickettsia montanensis.
authors.affiliation: Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205, USA.
authors.forename: Nicole C
authors.initials: NC
authors.lastname: Ammerman
authors.forename: Katherine I
authors.initials: KI
authors.lastname: Swanson
authors.forename: Jennifer M
authors.initials: JM
authors.lastname: Anderson
authors.forename: Timothy R
authors.initials: TR
authors.lastname: Schwartz
authors.forename: Eric C
authors.initials: EC
authors.lastname: Seaberg
authors.forename: Gregory E
authors.initials: GE
authors.lastname: Glass
authors.forename: Douglas E
authors.initials: DE
authors.lastname: Norris
mesh_terms: D000818:Animals; D001096:Arachnid Vectors / Q000382:microbiology*; D001425:Bacterial Outer Membrane Proteins / Q000235:genetics; D002950:Citrate (si)-Synthase / Q000235:genetics; D003870:Dermacentor / Q000382:microbiology*; D005260:Female; D006801:Humans; D008297:Male; D008396:Maryland / Q000453:epidemiology; D008969:Molecular Sequence Data; D018807:Polymorphism, Single-Stranded Conformational; D012281:Rickettsia / Q000145:classification* / Q000235:genetics; D012373:Rocky Mountain Spotted Fever / Q000453:epidemiology / Q000382:microbiology*; D017422:Sequence Analysis, DNA
chemical_list: D001425:Bacterial Outer Membrane Proteins; C080205:rOmpA, Rickettsia; D002950:Citrate (si)-Synthase