Gabriella Langlois
·
PHYLUM NEMATODA
, ASCARIS LUMBRICOIDES
Definitive Host: humans
Intermediate Host: none (direct life cycle)
Paratenic Host: cockroach (rare)
Infectious Stage: J3
Target Organ: SMALL intestine
Eggs of diagnostic importance: Mammalian Bumps
How: fecal/oral contamination
Lung migration: avoid stomach acid
Burrow through intestinal wall
eggs
TRICHURIS TRICHIURA
Definitive Host: humans
Intermediate Host: none (direct life cycle)
Infectious Stage: J1
Target Organ: LARGE intestine/rectum
How: fecal/oral contamination
Common name: “Human Whipworm”
MALES have curved posterior end
eggs
Symptoms = rectal prolapse
Eggs of diagnostic importance = 2 pores on
opposite ends
male tail
·
PHYLUM NEMATODA
, ASCARIS LUMBRICOIDES
Definitive Host: humans
Intermediate Host: none (direct life cycle)
Paratenic Host: cockroach (rare)
Infectious Stage: J3
Target Organ: SMALL intestine
Eggs of diagnostic importance: Mammalian Bumps
How: fecal/oral contamination
Lung migration: avoid stomach acid
Burrow through intestinal wall
eggs
TRICHURIS TRICHIURA
Definitive Host: humans
Intermediate Host: none (direct life cycle)
Infectious Stage: J1
Target Organ: LARGE intestine/rectum
How: fecal/oral contamination
Common name: “Human Whipworm”
MALES have curved posterior end
eggs
Symptoms = rectal prolapse
Eggs of diagnostic importance = 2 pores on
opposite ends
male tail
