Browsing All Electronic Theses and Dissertations by Subject "Vaccine failures"
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The development of a molecular serotyping system and an investigation into the presence of prophages in Avibacterium paragallinarum serogroups (University of the Free State, 2014-01)Avibacterium paragallinarum is an avian pathogen that causes the upper respiratory disease Infectious coryza (IC) in chickens. This disease has the ability to cause vast economic losses due to a decrease in egg production. ...