asked the Secretary of State for the Home Department how many animals not included in the laboratory experiments listed by his Department were used in 1962 in the preparation and testing of horse serum and polio vaccines, respectively.
§ Mr. Woodhouse
The use of animals for the preparation of sera and vaccines is not considered to come within the scope of the Cruelty to Animals Act, 1876, which governs only the conduct of experiments. No figures are thereforeavailable of the numbers of animals used for such preparation. Animals used for the testing of sera and vaccines are included in the published figures of experiments performed under the Act, except that those figures do not include any animals killed outright to obtain tissue for such tests, figures for which are not available.