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Serological diagnosis of borreliosis deseases
Sližová, Ivana ; Chmelař,, Dittmar (referee) ; Lochman,, Ivo (advisor)
The aim of present master’s thesis was to compare the results of serological methods for diagnosing borreliosis that are commonly used in Spadia laboratories (ELISA, immunoblots) in terms of recommendation on how and when to indicate and interpret them. The theoretical part is focusing on the characteristics and history of borreliosis, microbiological description of Borrelia, immune system and pathogenesis of the disease as well as the therapy and prevention. The experimental part is focusing on the analysis of results obtained from common examinations of antibodies to Borrelia made in Spadia Lab laboratories from January 1st 2014 to December 31st 2015. Screening of antibodies to Borrelia made by ELISA in IgM and IgG was done for all samples according to recommendation of CDC. In 2014 the ELISA screening was done using ELISA kits from Euroimmun and Evolis sample processors whereas in 2015 it was done using DiaSorin’s CLIA kits on Liaison analyser. Positive results were then confirmed by Westernblot or lineblot alternatively if the physician did not ask otherwise. It must be remembered that ELISA and Westernblot belong among serological methods that are using antibodies, i.e. substances produced by the immune system. The immune system plays the key role in protecting the body against infection and the antibodies are its important tool. Serological methods belong among immunoassay methods, which is still not standardized. Diagnosis of infections cann‘t be based only on antibody testing. It is necessary to assess the results in the context of the entire clinical picture, history and in the case of antibodies it is recommended retesting with an interval.
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Effect of \kur{Ixodes ricinus} feeding duration on transmission of the spirochete \kur{Borrelia afzelii}
CHLASTÁKOVÁ, Adéla
Lyme borreliosis is a multisystem infectious disease caused by tick-borne spirochetes belonging to the \kur{Borrelia burgdorferi} sensu lato complex. It is generally believed that if a tick is attached for less than 24 hours, infection is unlikely because it requires between 36 and 48 hours of attachment for \kur{Borrelia burgdorferi} to travel from within the tick into its saliva. Nevertheless, there is evidence that transmission to a host may even occur in the early phases of tick feeding. We investigated the dynamics of \kur{Borrelia afzelii} transmission by nymphal \kur{Ixodes ricinus} ticks with special respect to the first day of tick attachment.
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Ecological and epidemiological aspects of Lyme borreliosis.
BREJCHOVÁ, Lucie
This Bc. thesis deals with the most common human tick-borne disease the Lyme borreliosis, its occurence and clinical features. Spirochetes from the Borrelia burgdorferi complex are causative agens of the disease. Ticks of the genus Ixodes are responsible for pathogen transmission from wild animals to humans.
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