Lab Pro Day 3/10

15 parasites

Toxocara canis. (Canine Roundworm)

Nematode/ Ascarid

PPP: 21-35 days

Route of Transmission: Ingesting egg with infective larva / Across placenta 

Dx: Fecal float

Other info

• Found in intestinal track

• Pitted outer shell

• Dark pigmented centre

Toxocara cati. (Feline Roundworm)

Nematode/ Ascarid

PPP: 56 days

Route of Transmission: Ingesting egg with infective larva / Across placenta 

Dx: Fecal float

Other info:

• Slightly smoother outer shell 

Toxascaris leonina. (Canine and Feline Roundworm)

Nematode/ Ascarid

PPP: 74 days

Route of Transmission: Ingesting egg with infective larva / Across placenta 

Dx: Fecal float

Other info:

• Smooth outer shell

• Ground glass centre

Baylisascaris procyonis. (Raccoon roundworm)

Nematode/ Ascarid

PPP: 7-10 weeks (if ova ingested) / 4-5 weeks (if larvae ingested)

Route of Transmission: Ingesting egg with infective larva

Dx: Serologic testing (humans)

Other info:

• Zoonotic

• Survives in environment for a long time

• Humans are accidental host

Ancylostoma caninum. (Canine hookworm)

Nematode / Ascarid

PPP: 2-3 weeks

Route of Transmission:

• Ingestion of eggs 

• Transdermal

• Across placenta/ mammary milk

Dx: Fecal float

Ancylostoma braziliense (Canine & Feline hookworm)

Nematode / Ascarid

PPP: 3 weeks

Route of Transmission:

• Ingestion of int. host

• Transdermal

Dx: Fecal float

Uncinavia stenocephala (Canine & Feline Northern canine hookworm)

Nematode / Ascarid

PPP: 2-3 weeks

Route of Transmission:

• Ingestion of infected larvae/prey

Dx: Fecal float

Ancylostoma tubaeforme (Feline hookworm)

Nematode / Ascarid

PPP: 2-4 weeks

Route of Transmission:

• Ingestion of larvae

• Transdermal

• Transmammary

Dx: Fecal float

Strongyloidea (Equine Horse Redworm)

Nematode / Ascarid

PPP: 6 months

Route of Transmission:

• Ingestion of larvae

Dx: Fecal float/culture

Trichostrongyloidea spp. (Bovine tricostrongle)

Nematode / Ascarid

PPP: 3 weeks

Route of Transmission:

• Ingestion of larvae

Dx: Fecal culture / identification of larva

Rhabditoidea strongyloides (Canine & Feline Intestinal threadworm)

Nematode / Ascarid

PPP: 8-14 days

Route of Transmission:

• Mammary milk

• Percutaneous (larvae)

Dx: Fecal float

Other info: Only parmenogenetic is parasitic in host

Muellerius capillaris (sheep/goat hair lungworm)

Nematode / Ascarid

PPP: 3-5 weeks

Route of Transmission:

• Ingestion of eggs

• Passed in feces

Dx: Fecal float / Baermann technique

Other info: Dorsal spine

Tricuris vulpis (Canine whipworm)

Nematode / Ascarid

PPP: 70-90 days

Route of Transmission:

• Ingestion of eggs

• Passed in feces (3 days)

Dx: Fecal float (centrifugation)

Other info: not zoonotic

Capillaria plica (Canine & Feline bladder worm)

Nematode / Ascarid

PPP: 8 weeks

Route of Transmission:

• Ingestion of eggs

• Ingestion of earth worms

Dx: Fecal float / urinalysis (difficult identification)

Trichuris spiralis (Pork worm)

Nematode / Ascarid

PPP: 2-7 days

Route of Transmission:

• Ingestion of infected larval stages of meat

Dx: Fecal float / biopsy of muscle

Other info: causes michinosis