Parasitt credit 1: APICOMPLEXA (Babesia, Theilera, Plasmodium, Hepatozoon)

Final host of hepatozoon?

Ticks, mosquitos

Transmission of hepatozoon?

- Trans-stage transmission between tick generations,

- Ingestion of tick,

- transplacental route

Hepatozoon canis is transmitted by?

Ingestion of ticks:
- Rhipicephalus sanguineus
- Ixodes spp.
(oral infection) in dogs

Vector of Babesia canis?

Tick (Dermacentor reticulatus)

Vector of babesia divergens?

Tick (Ixodes Ricinus)

Diagnosis of large and small Babesia?

Large:

- B.canis

- 2-5 micrometer

- 2 merozoites at acute angle

- in center of Ec

Small:

- B.gibsoni

- 1-2 micrometer

- 2 merozoites at obtuse angle

- peripheral of Ec

Position of small and large babesia in erythrocytes?

Large:

- merozoites located centrally

- Size: >radius of Ec

Small:

- merozoites located in the periphery

- Size: <radius of Ec

Where does gamogony in babesia occur?

- in tick midgut

- gametocytes formed in mammalinan RBCs

- microgametes, macrogametes, zygote formed in midgut of tick

Texas cattle fever is caused by?

- Babesia bovis

- Babesia bigemina

In which form is babesia formed in the vertebrates?

Sporozoites -> trophozoites -> merozoits -> gametocytes

Babesia divergens in what animals?

Cattle, human

Two genera of blood parasites?

Babesia and Theileria

Babesia divergens is transmitted by?

Ixodes Ricinus (vector) to cattle and human

Gametogony of babesia canis begins where?

In the midgut of thick (formation of gametes)

In plasmodium, which stages are in the mosquitos?

Gametogony and Sporogony

Vector of plasmodium?

Mosquitos: Anopheles spp. and Culex spp.

Vector of human plasmodium?

Anopheles spp. (transmit malaria)

Gametogony in plasmodium vivax takes place where?

In Musquito gut (intestinal cells)

Life cycle of plasmodium has 4 phases:

one sexual and three asexual

What parasite is responsible for east-coast fever?

T. parva

What parasite is responsible for Mediterranean coast fever?

T. annulate

Definitive host of Theileria is?

- Rhipicephalus appendiculatus
- Hyalomma

Intermediate host in Theileria?

Ruminants

Differences in life cycle of babesia and theileria?

- They both have transstadial transmission (larva -> nymph, nymph -> adult)

Babesia:

- only in erythrocytes

- Transovarial transmission (Egg -> Larva)

Theileria:

- can be in erythrocytes and lymphocytes

What is Koch´s blue bodies?

Macro-schiontz in leukocytes (Leishmania)

Clinical sign in theileria infection?

Accumulation of parasites in the spleen

Merogony/schizogony of theileria occurs in?

lymphocytes in IH

Macroschizonts of Theileria spp. are located in

Lymphocytes before moving to erythrocytes

T. Parva causes

Chaga's Disease