Kevin Purcell

Learn More
Children from South Texas were evaluated for immu-noglobulin G to Rickettsia typhi, the causative agent of mu-rine typhus. Of 513 children, 8.6% of those 1–5 years of age, 13.3% of those 6–11 years of age, and 13.8% of those 12–17 years of age had positive results. R ickettsia typhi causes murine typhus in humans, a fe-brile illness with headache and rash.(More)
The evolutionarily significant unit concept provides a powerful tool for conserving biodiversity below the species level, but temporal criteria are often used explicitly or implicitly in the operational definitions of evolutionarily significant units (ESUs). Such temporal considerations have important implications for recently diverged taxa, as is the case(More)
Technical Memoranda are used for documentation and timely communication of preliminary results, interim reports, or special-purpose information. Although the memoranda are not subject to complete formal review, they are expected to reflect sound professional work. ii NOTICE The National Marine Fisheries Service (NMFS) does not approve, recommend or endorse(More)
  • 1