Overview of Common Types of Parasite Life Cycles

Содержание

1. Overview of Common Types of Parasite Life Cycles
2. Definitions of HostsMany parasites have more than
3. Definitions of HostsDefinitive host – a host
4. Definitions of HostsDefinitive host – a host
5. Definitions of HostsDefinitive host – a host
6. Definitions of HostsVector- any agent, either animate
7. Definitions of HostsVector- any agent, either animate
8. Definitions of HostsVector- any agent, either animate
9. OutlineMonogenea: Direct Life Cycles and Autoinfection (Complex
10. Platyhelminthes
11. Phylum PlatyhelminthesClass TrematodaSubclass DigeneaClass CestoideaClass Monogenea
12. Class Monogenea:Most ecto-parasites of fish.Some endo-parasites of
13. Opisthaptor (Haptor)Ciliated larva
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16. Life cycle of Ecto parasitic monogenean
17. Gyrodactylus sp.
18. Adult worms contain several generations of embryos
19. The embryo is separated from the parental
20. Gyrodactylus The reproductive biology of Gyrodactylus is
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22. Gyrodactylus sp.
23. Diplozoon paradoxum
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25. Polystoma nearcticumLife cycle of Endo parasitic monogenean
26. Polystoma nearcticum
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30. Spadefoot toad
31. Tadpole of Spadefoot toad
32. Tadpoles of Spadefoot Toads
33. Temporal adaptationSpadefoot toadsare parasitized bya Monogenean Pseudodiplorchis americanus
34. Pseudodiplorchis americanusPolystoma nearcticum
35. Pseudodiplorchis americanus
36. Pseudodiplorchis americanus
37. Pseudodiplorchis americanus
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46. Autoinfection
47. Oculotrema hippopotami
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Definitions of HostsMany parasites have more than one host in their life cycle. These hosts have different roles and are given specific names.

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Overview of Common Types of Parasite Life Cycles

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Слайд 1Overview of Common Types of Parasite Life Cycles

Слайд 2Definitions of Hosts
Many parasites have more than one host in

their life cycle. These hosts have different roles and are

given specific names.

Definitions of HostsMany parasites have more than one host in their life cycle. These hosts have different

Слайд 3Definitions of Hosts
Definitive host – a host in which the

parasite reaches sexual maturity and undergoes reproduction.

Слайд 4Definitions of Hosts
Definitive host – a host in which the

parasite reaches sexual maturity and undergoes reproduction.

Intermediate – a

host in which the parasite undergoes larval development but does not reach sexual maturity.

Слайд 5Definitions of Hosts
Definitive host – a host in which the

parasite reaches sexual maturity and undergoes reproduction.

Intermediate – a

host in which the parasite undergoes larval development but does not reach sexual maturity.

Paratenic host (Transport host) – a host in which a parasite survives without undergoing further development. A paratenic host accumulates and maintains stages of a parasite, and although beneficial, is not essential to the life cycle.

Слайд 6Definitions of Hosts
Vector- any agent, either animate or inanimate (such

as wind, water, or arthropod) that transmits an infectious organism.

Definitions of HostsVector- any agent, either animate or inanimate (such as wind, water, or arthropod) that transmits

Слайд 7Definitions of Hosts
Vector- any agent, either animate or inanimate (such

as wind, water, or arthropod) that transmits an infectious organism.

Biological

Vector- a vector in which a parasite lives or develops. The parasite undergoes morphologic change and/or multiplication, and the vector is usually essential for the life cycle.

Слайд 8Definitions of Hosts
Vector- any agent, either animate or inanimate (such

as wind, water, or arthropod) that transmits an infectious organism.

Biological

Vector- a vector in which a parasite lives or develops. The parasite undergoes morphologic change and/or multiplication, and the vector is usually essential for the life cycle.

Mechanical Vector- a vector which transmits a parasite by mechanical means only. It may be living or non-living and is not essential for the parasite’s life cycle.