Parasitic Zoonosis (Epi)

Front 1

here do Crypto and Giardia live outside the host? How do you need to treat sewage and drinking water?

Back 1

Water
Filtration (chlorine not effective)

Front 2

Approximately how many people are infected with Giardia globally?
What "type" infects humans? What % of cattle have this type?
Dogs & cats?

Back 2

200 million
Type A
10-20%
50%

Front 3

ow severe is cryptosporidiosis in humans? What does Giardia cause? Is chlorine effective at killing either Crypto or Giardia?

Back 3

Usually mild
Intestinal infections
No

Front 4

Where is Toxoplasma gondii able to survive for months?
Who are the definitive hosts? What are the two ways humans can be infected?

Back 4

Soil
Felids
1) Ingestion of oocyst from soil
2) Ingestion of bradyzoite from infected tissue

Front 5

How do most humans in the US become infected with Toxoplasma?

Back 5

Ingestion of undercooked meat, not soil exposure

Front 6

What are symptoms of Toxoplasmosis in humans?
What are the complications during pregnancy?

Back 6

Asymptomatic
Early- stillbirths or miscarriages
Late- congenital defects

Front 7

How is Babesia transmitted? What is babesiosis often confused with? What are symptoms like in humans?

Back 7

Ticks
Lyme disease
Mild

Front 8

How is Leishmania transmitted? Where does it mostly occur?
What are the three forms?

Back 8

Sandflies
Tropics
1) Cutaneous
2) Mucocutaneous
3) Visceral

Front 9

Which form of Leishmania do humans get more? Why?
What are the symptoms?

Back 9

Visceral b/c dogs are the reservoir
Fever, splenomegaly, hepatomegaly, anemia, death

Front 10

What transmits Trypanosoma? What can it cause in humans?

Back 10

Bite of the tsetse fly
Sleeping sickness, death

Front 11

Is Dirofilaria infectious to humans? How is it transmitted?

Back 11

Yes, but usually asymptomatic
Mosquitos

Front 12

How is Thelazia transmitted? Where are eggs laid?

Back 12

Flies
Conjunctival and lacrimal sacs of eyes

Front 13

What type of parasite is usually migratory during the larval stage?
What is the definition of larval migrans?

Back 13

Parasitic nematodes
Disease caused by migrating larvae in the wrong host

Front 14

What stage of round worm can cause larval migrans? What are the symptoms?

Back 14

The egg and the L3
Usually asymptomatic

Front 15

How do you prevent humans from acquiring Toxocariasis?
Are roundworms in dogs the same ones that cause disease in people?

Back 15

Reduce the reservoir
deworm
No

Front 16

What does Ancylostoma caninum cause in humans?

Back 16

Cutaneous larval migrans