is caused by nematode Toxocara vitulorum. It has complex life cycle.
Transmission is by ingestion of highly resistant and long lived
larvated eggs. They settle in somatic cells and activate near
parturition and migrate to udder. They transfer to calf in
colostrums and grow to the adult stage in intestine. When animal is
of 3-4 weeks, problem start and there is diarrhea and effect to
If lungs involved fever and cough
Mucopurulent nasal discharge
Anemia and steatorhea (fat along with feaces) specially in young
Pneumonia in young animals, malnutrition, chronic enteritis.
Ivermectin, levamisole, benzimidazole group (alfendazole,
albandazole). After one month of calving deworming is done.
Then after every 2 or 3 month (3 or 4 times/year).