Neonatal Parasitology Flashcards
Most common route of toxocara canis transmission:
Transplacental
Most common route of infection for ancylostoma:
transmammary
When does somatic larva activate for toxocara canis:
Around day 42 of pregnancy, enter blood stream
Toxocara canis in puppies:
Born with parasites in liver & lungs
tracheal migration to SI
PPP 3 wks
When does toxocara canis pose the largest risk in puppies? T. cati in kittens?
after 2 weeks of age, usually not a problem in the neonate
Same applies to cats
How does Toxocara cati differ from Toxocara canis?
NO transplacental transmission for T. cati
How do larvae and adults of ancylostoma affect puppies
Blood feeding in SI- anemia
Diarrhea
Failure to Thrive
Does ancylostoma cause neonatal disease in cats?
No, no transmammary transmission
When does egg production begin for Ancylostoma in puppies:
Day 14!
Antihelmintic tx of puppies & kittens:
Pyrantel pamoate used most often.
Rec is 2/4/6/8wks for puppies and 6/8/10 wks for kittens
When is clinical coccidiosis mostly seen in small animals?
Post-weaning
Most important neonatal parasite of ruminants:
Cryptosporidium parvum
How quickly are crypto oocysts infective?
Immediately
(contain 4 sporozoites)
Timeline of Crypto in calves:
Typically infected within days of birth
Infect cells in the ileum
Clinical sign onset around 3-4 days, last 1-2 weeks
Usually seen in 1-2 weeks of age but up to 4
Shedding occurs 4-12 days post-infection
Clin Signs of Calf crypto:
Profuse watery diarrhea
Inappetence
Dehydration
Lethargy
More severe if other pathogens present (death is usually a compounded event)
