Babesia spp

Question 1

no oocyst.

Answer 1

Subclass Piroplasmia

Question 2

Common tick-borne parasite of domestic and wild animals.

Answer 2

Babesia spp.

Question 3

Parasites of red blood cells, causes?

Answer 3

malaria-like infections

Question 4

No intracellular pigment in developmental stages.

Answer 4

Babesia spp.

Question 5

Rare zoonotic human infection, natural host are the rodents and deers.

Answer 5

Babesia spp.

Question 6

white-footed mouse.

Answer 6

Peromyscus leucops

Question 7

[2] Types of Human Babesiosis

Answer 7

1. B. microti
2. B. divergens

Question 8

located in United States.

[human babesiosis]

Answer 8

B. microti

Question 9

Reservoir — cattle, ruminents

[human babesiosis]

Answer 9

B. divergens

Question 9

Reservoir — field mice, voles

[human babesiosis]

Answer 9

B. microti

Question 10

Vector — Ixodes scapularis (black-legged tick) lxodes dammiini

[human babesiosis]

Answer 10

B.microti

Question 11

Vector — Ixodes ricinus

[human babesiosis]

Answer 11

B. divergens

Question 12

cases (~300)

[human babesiosis]

Answer 12

B. microti

Question 13

cases (~30)

[human babesiosis]

Answer 13

B. divergens

Question 14

fatality (5%)

[human babesiosis]

Answer 14

B. microti

Question 15

fatality (50%)

[human babesiosis]

Answer 15

B. divergens

Question 16

Common species diagnosed in human.

Answer 16

Babesia microti

Question 17

Small rings within the red blood cell, very much like Plasmodium falciparum with a darkly staining nucleus and very little cytoplasm.

Answer 17

Babesia microti

Question 18

It do not have associated pigment in the
red blood cell.

Answer 18

Babesia microti

Question 19

Asexual multiplication by binary fission in the RBC with production of merozoite that invade other RBC.

Answer 19

Babesia microti

Question 20

When taken up by the ticks, there is complex cycle of multiplication that includes a sexual stage, resulting ultimately in the presence of the parasites in the salivary gland of the tick.

Answer 20

Babesia microti

Question 21

Definitive host of Babesia microti?

Answer 21

tick

Question 22

Transmission occurs from an animal to a human, normally using the northern deer tick or black-legged tick (Ixodes scapularis) as the vector.

Answer 22

Definitive host of Babesia microti

Question 23

Transmitted by the tick Ixodes ricinus.

Answer 23

Babesia divergens

Question 24

Main agent of bovine babesiosis, or red water fever in Europe.

Answer 24

Babesia divergens

Question 25

It can also infect immunocompromised humans, causing medical emergencies characterized by rapid fulmination and parasitemias that may exceed 70%

Answer 25

Babesia microti