asked the Secretary of State for Social Services how many cases of toxocara canis have been recorded in the last three years.

[pursuant to his reply, 25 October 1985, c. 284]: Figures are not available centrally on the incidence of toxocara canis. The only serious disease which is certainly attributable to this infection is ocular toxocariasis and about 50 such cases are reported each year in England and Wales. There is no epidemiological evidence to suggest that the incidence of ocular toxocariasis is increasing.