This Week in Parasitism
TWiP is a podcast about the tiny creatures that live in and on us.

Vincent and Dickson continue their discussion of malaria, with emphasis on clinical aspects of the disease.

Host links: Vincent Racaniello and Dickson Despommier

Links for this episode:

  • The quest for a malaria vaccine (Meet the Scientist 49)
  • Science issue on malaria and tuberculosis
  • Malaria pathogenesis (pdf)
  • Malaria pathogenesis (jpg)
  • Letters read on TWiP 11
  • Direct download: TWiP011.mp3
    Category:Science -- posted at: 11:00am PST

    Vincent and Dickson trace the life cycle of Plasmodium in a mosquito and in a human host.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    • Mosquito cycle - sporogany (jpg)
    • Plasmodium falciparum cycle (jpg)
    • Plasmodium vivax cycle (jpg)
    • Plasmodium falciparum ring forms and gametocytes in blood (jpg)
    • Plasmodium stages (jpg)
    • Letters read on TWiP 10
    Direct download: TWiP010.mp3
    Category:Science -- posted at: 7:00pm PST

    Vincent and Dickson move on to protozoan parasites with a discussion of the early history of malaria.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    Direct download: TWiP009.mp3
    Category:Science -- posted at: 7:20pm PST

    Dickson reads his story about sparganosis caused by the diphyllobothroid tapeworm Spirometra mansonoides.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    Direct download: TWiP008.mp3
    Category:Science -- posted at: 9:30am PST

    Vincent and Dickson continue their discourse on tapeworms, covering the fish and dog varieties.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    • FAT the enemy that is shortening your life is BANISHED. How? With sanitized tapeworms. Easy to swallow! (jpg).
    • D. latum life cycle (jpg)
    • D. latum adult (jpg)
    • Diphyllobothrim proglottid (jpg)
    • Diphyllobothrim bothria (jpg)
    • Coracidium hatching from egg (jpg)
    • Dog tapeworm life cycle (jpg)
    • The Alien lifecycle (jpg)
    Direct download: TWiP007.mp3
    Category:Science -- posted at: 7:30pm PST

    Vincent and Dick talk about the anatomy and life cycle of beef and pork tapeworms, and why House was wrong about neurocysticercosis.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    • Taenia saginata life cycle (jpg)
    • Taenia saginata adult (jpg)
    • Taenia saginata scolex (jpg)
    • Taenia saginata gravid proglottid (jpg)
    • Taenia solium life cycle (jpg)
    • Taenia solium adult (jpg)
    • Taenia solium scolex (jpg)
    • Facial cancer in Tasmanian devils (thanks PhogDog!)

    Science Picks

    Dickson Peace through vaccine diplomacy by Peter Hotez
    Vincent Parasite Rex by Carl Zimmer

    Direct download: TWiP006.mp3
    Category:Science -- posted at: 9:30pm PST

    Vincent and Dick discuss the nurse cell, a unique structure formed in the host muscle by Trichinella species.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    Weekly Science Picks

    Dickson Every Living Thing by Rob Dunn

    Direct download: TWiP005.mp3
    Category:Science -- posted at: 7:30pm PST

    Vincent and Dick trace the life cycle of Trichinella spiralis in an infected host.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    • Trichinella life cycle (jpg)
    • Newborn larva entering muscle cell (jpg)
    • Adult T. spiralis in columnar epithelial cell (jpg)
    • Adult female T. spiralis (jpg)
    • Infective first stage T. spiralis larva in Nurse cell in muscle tissue (jpg)
    • Adult female T. spiralis with fully formed larvae in uterus (jpg)
    • Adult male T. spiralis with claspers on tail (jpg)
    • Clinical correlations in trichinosis (jpg)
    • Letters read on TWiP #4

    Weekly Science Picks

    Dickson David Scharf's pictures of microbial life
    Vincent
    The Nobel Laureate Meetings at Lindau

    Direct download: TWiP004.mp3
    Category:Science -- posted at: 9:00am PST

    Vincent and Dick distinguish among intracellular and extracellular parasites, then discuss the history and general characteristics of Trichinella spiralis.

    Host links: Vincent Racaniello and Dickson Despommier

    Links for this episode:

    Weekly Science Picks

    Dickson The Doctor and the Devils

    Direct download: TWiP003.mp3
    Category:Science -- posted at: 3:30pm PST

    Vincent and Dick classify parasites according to whether or not they are transmitted by a vector, then consider the implications of long-lived parasites.

    Host links: Vincent Racaniello and Dickson Despommier

    Direct download: TWiP002.mp3
    Category:Science -- posted at: 5:30pm PST