Sökning: "Louse"

Hittade 5 avhandlingar innehållade ordet Louse.

  1. 1. Tales of the flying earth: The effect of host flyways on the phylogeny of shorebird lice (Phthiraptera: Ischnocera)

    Författare :Daniel Gustafsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Parasite; Bird; Lice; Louse; Migration; Evolution; Ecology; Co-evolution; Lunaceps; Shorebirds; Carduiceps; Quadraceps; Revision; Phylogeny; Saemundssonia; Rallicolidae; Charadriiformes; Scolopacidae; Phthiraptera; Philopteridae; Ischnocera; Sandpiper; Flyways; Chewing Lice;

    Sammanfattning : On the wings, bodies, and heads of most birds there are lice. These lice spend their whole lives on their host, with the exception of the few lice that get the opportunity to transfer from one host to another, typically when the hosts come into physical contact with each other. LÄS MER

  3. 2. Bartonella Infections in Sweden: : Clinical Investigations and Molecular Epidemiology

    Författare :Christian Ehrenborg; Martin Holmberg; Göran Friman; Eva Hjelm; Gunnar Sandström; Uppsala universitet; []
    Nyckelord :Communicable diseases; Bartonella; clinical studies; molecular epidemiology; Infektionssjukdomar;

    Sammanfattning : Characteristically, in infections that are caused by the zoonotic pathogen Bartonella naturally infected reservoir hosts are asymptomatic, where infected incidental, non-natural, hosts develop symptomatic disease. Cat-scratch disease (CSD) is a well known example. LÄS MER

  4. 3. Lifestyle and Genome Evolution in Vector-Borne Bacteria : A Comparison of Three Bartonella Species

    Författare :Anna Carolin Frank; Siv Andersson; Stewart Cole; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Bartonella; evolution; host-restriction; vector-borne; horizontal gene transfer; genome reduction; alpha-proteobacteria; Type-IV secretion; Biologi; Biology; Biologi;

    Sammanfattning : Bacterial genomes provide records of the molecular processes associated with emergence and evolution of different bacterial lifestyles. This thesis is based on whole-genome comparisons within the genus Bartonella, an excellent model system for studies of host- and vector-specificity and infection outcome in animal-associated bacteria. LÄS MER

  5. 4. Immunopathogenesis of relapsing fever borreliosis

    Författare :Marie Andersson; Sven Bergström; Betty P. Guo; Janis J. Weis; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Relapsing fever; Borrelia; mouse models; biological barriers; pathology; chemokines; cytokines; pregnancy; Molecular biology; Molekylärbiologi;

    Sammanfattning : Relapsing fever (RF) is caused by different species of Borrelia transmitted by soft ticks or by the human body louse. Illness is characterized by reappearing peaks of high concentrations of spirochetes in blood, concordant with fever peaks separated by asymptomatic periods. LÄS MER

  7. 5. Pathobiology of African relapsing fever Borrelia

    Författare :Christer Larsson; Sven Bergström; Sally Cutler; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; borrelia; persistence; meningitis; pregnancy; latency; immune privileged sites; Medical microbiology; Medicinsk mikrobiologi;

    Sammanfattning : Relapsing fever (RF) is a disease caused by tick- or louse-transmitted bacteria of the genus Borrelia. It occurs worldwide but is most common in Africa where it is one of the most prevalent bacterial diseases. The main manifestation is a recurring fever which coincides with massive numbers of bacteria in the blood. LÄS MER