Background
| Organism | Host | Notes |
|---|---|---|
| Toxocara canis | canines | most common cause in humans |
| Toxocara cati | felines | |
| Baylisascaris procyonis | raccoons |
- Humans are dead-end hosts
Clinical Manifestations
- Most frequently in young children (who are effective at getting dirt into their mouths)
- Mean age 2 to 4 years
- Most infection is asymptomatic
- Severe symptoms eosinophilia, fever, and hepatomegaly
- Other common symptoms include cough, wheezing
- Rarely, urticaria and nodules
- Very rarely, ocular involvement
