Lecture 27: Roundworm disease III Flashcards
What species does Stephanurus dentatus infect and where
Swine kidney worm
Where are stephanurus dentatus eggs found: feces or urine
Urine
How do you dx S. Dentatus
Eggs in urine
What are tx for S. Dentatus
Ivermectin, fenbendazole
Where do syngmaid worms infect and what species
Upper respiratory tract of birds and mammals
What species does syngamus trachea infect
Domestic and wild galliform birds
How do birds get S. Trachea
Ingest infective eggs or paratenic host
What are some paratenic hosts for S. Trachea
Earthworms, terrestrial mollusk, larval flies
Bird presents with dyspnea, coughing, head shaking, anorexia. The following worms were observed in trachea. What parasite is this
S. Trachea
What species do hookworms parasitize and where
SI of mammals (dogs, cats ruminants)
How can hookworms be spread
Transmammary, Transplacental, paratenic host, penetrate skin
What are the common hookworms in dogs
- Ancylostoma caninum
- A. Brazilinese
What are the common hookworms in cats
- A. Tubaeforme
- A brazilinese
In dogs and cats which hookworms are more pathogenic
A. Caninum and A. Tubaeforme
Where does A. Caninum larvae arrest
Skeletal muscle and SI wall
How are A. Caninum larvae activated
- During pregnancy—> Transplacental transmission
- When adult hookworms are lost
T or F: A Tubaeforme can be transmitted transmammary/ transplacental
False
What pathology is present in dog and cats infected with hookworms
Percutaneous infection and lung migration
Dermatitis and pruritus (on feet)
Pneumonia or other respiratory disease
What zoonotic risk do dog and cat hookworms pose
Cutaneous larvae migrans
Hookworm B. Phelbotmum infects what species
Cattle
What are some tx for hookworms in ruminants
Macrocyclic lactons, benzimidazoles and levamisole
What are some tx for hookworms in dogs and cats
Ivermectin, moxidectin
What supportive care might be necessary following infection with hookworms
Blood transfusions
Dog presented with pneumonia, dermatitis, pruritus. Was also anemic. Following egg was found on fecal what parasite
A. Caninum
What do metastrongyloids infect
Respiratory system
What species are primarily impacted by metastrongyloids
Cats, dogs, and small ruminants
What are the metastrongyloid lungworms of sheep and goats
- Protostrongylus rufescens
- Muellerius capillaris
Sheep or goat lung showed granulatomas lesions. What parasite caused this
Metastrongyloid lung worms:
1. Protostrongylus
2. Muellerius capillaris
What is the most common lungworm of cats
Aeleurostrongylus abstrusus
How do cats get A. Abstrusus
Predation of infected paratenic host
What do adult A, abstrusus do to DH
Accumulate in bronchioles and alveolar ducts cause coughing sneezing, nasal discharge
Severe infection: bronchopneumonia with chronic cough
The following was taken from a cat who presented with a chronic cough, dyspnea, and nasal discharge. What is the parasite
A. Abstrusus
What is the reservoir host for crenosoma Vulpis
Red fox
What species does crenosoma Vulpis infect
Dogs
How do dogs become infected with C. Vulpis
Eating infected gastropods
What does C. Vulpis cause in dogs
Accumulate in bronchi and bronchioles cause persistent cough, and heavy infections can cause bronchopneumonia
Dog presented with a persistent cough and the following was obtained. What could be causing this
C. Vulpis
Metastrongyloids typically have a heteroxenous/indirect life cycle, what is an example of one that has a direct/ monoxenous life cycle
Filaroides
What is the infective stage of filaroides
L1s
What species and where does F. Osleri infect
Tracheal and bronchial nodules of dogs
What species and where does F. Hirthi infect
Alveoli and bronchioles of dogs
How can you dx metastrongyloids
Baermann test
What are some tx for metastrongyloids
Fenbendazole
Are rhabditida heteroxenous or monoxenous
Monoxenous
Are spirurida heteroxenous or monoxenous
Heteroxenous
What is intermediate host for spirurida
Arthropods
What are rhabditids strongyloides spp also called
Threadworms
What species for rhabditids infect and where
GI of mammals, birds, reptiles and amphibians
All adult parasites of strongyloides spp are ___
Parthenogenetic females
What species does S. Stercoralis infect
Dogs and cats
S. Sterocoralis utilize auto infection, what is that
some L1s remain in host, develop Les which penetrate intestinal mucosa and Perianal skin `
What is the tx for strongyloides in mammals
Ivermectin, benzimidazoles
What is the tx for strongyloids in birds
Tetramisole
