Spotted-fever group Rickettsia in Dermacentor variabilis, Maryland

Nicole C. Ammerman, Katherine I. Swanson, Jennifer M. Anderson, Timothy R. Schwartz, Eric C. Seaberg, Gregory E. Glass, Douglas E. Norris

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)1478-1481
Number of pages4
JournalEmerging infectious diseases
Issue number8
StatePublished - Aug 2004

ASJC Scopus subject areas

  • Epidemiology
  • Microbiology (medical)
  • Infectious Diseases


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