Threadworms- Strongyloides

Question 1

S. stercoralis

Answer 1

direct life cycle
PPP 8-14 days
per os, percutaneous, transmammary, transplacental
egg with L1 or L1
fecal float or mcmaster
adult can be free living in environment
in animal in small intestine
can cause enteritis, uticaria, diarrhea
somatic stages in the lungs
dog and cat host
fecal float or baermann
zoonotic

Question 2

S. papillosus

Answer 2

direct life cycle
PPP 8-14 days
per os, percutaneous, transmammary
egg with L1 or L1
fecal float or mcmaster
adult can be free living in environment
in animal in small intestine
can cause enteritis, uticaria, diarrhea
somatic stages in the lungs
ruminants

Question 3

S. ransomi

Answer 3

direct life cycle
short PPP
per os, percutaneous, transmammary, transplacental
egg with L1 or L1
fecal float or mcmaster
adult can be free living in environment
in animal in small intestine
can cause enteritis, uticaria, diarrhea
somatic stages in the lungs
pigs

Question 4

S. westeri

Answer 4

direct life cycle
PPP 8-14 days
per os, percutaneous, transmammary
egg with L1 or L1
fecal float or mcmaster
adult can be free living in environment
in animal in small intestine
can cause enteritis, uticaria, diarrhea
somatic stages in the lungs
horses
gets treated when treating parascaris equorum