Basic principles of parasitiology and biology of helminths - hosts

4 important questions on Basic principles of parasitiology and biology of helminths - hosts

What are the benefits of multiple intermediate hosts?

  • Survival
  • transmission
  • reproduction

Properties of a specialist:

Example: pork take worm/ tenia solium
  • highly adapted to one or few host species
  • highly efficient at exploiting one or few hosts
  • lower changes of transmission to host

Properties of generalists/allrounder:

Example: trichinella spiralis
  • moderately adapted to many different host species (cost)
  • moderately effective at exploiting many different hosts (cost)
  • high chances of transmission to hosts (benefit)
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What are reproductive adaptations for transmission success?

  • Asexual reproduction
  • budding
  • schizogony or multiple fission
  • binary fission

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