VPA 211: General Veterinary Parasitology and Helminthology (3+1)

PATHOGENESIS

• Adult worms are firmly attached to the mucosa of stomach and suck the blood.
• They also feed on the mucosa of stomach wall, so the erosion of mucosa occur at the site of attachment.
• Heavy infection causes acute gastritis ,anaemia due to blood loss, anorexia and vomition may also occur.
• Faeces is dark, tarry red in colour.