Veterinary and public health considerations in canine roundworm control: a survey of practicing veterinarians.

We conducted a survey to assess whether current veterinary practices concerning prophylaxis and treatment of canine roundworm (Toxocara canis) infection are adequate to prevent the potential public health risks of visceral larva migrans. We administered a standard questionnaire by telephone to 100 small animal practitioners. Fifty-four veterinarians included health education for the pet's owner as part of their routine care in a case of canine roundworm infection, and 39 recommended prophylactic treatment for this potential zoonosis. Seven veterinarians recommended that pups receive the 1st treatment for roundworm infection before 3 weeks of age, 32 recommended 1st treatment or deworming at 3-4 weeks of age, 39 recommended 5-6 weeks of age, and 22 suggested that it be done at or after 7 weeks of age. Fifteen veterinarians recommended that a nursing bitch be treated for roundworm infection. On the basis of the survey results, we concluded that current veterinary practices concerning the zoonotic aspect of T canis fections are inadequate. We recommend that veterinarians inform their clients that simple hygienic practices are important at avoid the risk of visceral larva migrans. We recommend that deworming programs be started at 2-3 weeks after whelping and include the nursing bitch as well as the pups.