Canada says it has discovered what may be another case of mad cow disease.

The news comes just one day after the United States announced plans to reopen its border in March to nearly all Canadian beef and live cattle .

U.S. officials banned the import of Canadian cattle in May, 2003 after Canada found its first case of the disease.

The Canadian Food Inspection Agency says the suspected new case involves a 10-year-old dairy cow, but the human food and animal feed systems have not been effected.

The agency says final results from tests on the cow will be ready in three to five days.

Mad cow disease attacks the central nervous system of cattle and can be harmful to humans if tainted meat is consumed.

Some information for this report provided by Reuters.