A shopper in a Taipei supermarket takes a close look at a label on New Zealand beef
Taiwan has reimposed a ban on U.S. beef imports after American officials announced the discovery of an animal with mad cow disease.

Taipei said Saturday, the ban would take effect immediately. The suspension comes about two months after the island lifted a previous ban imposed after an infected cow imported from Canada was discovered in December of 2003 in the western state of Washington.

U.S. Agriculture Secretary Mike Johanns said Friday that a laboratory in England had confirmed a second animal has the disease, formally known as bovine spongiform encephalopathy or BSE.

Mr. Johanns said human health was not at risk, because the animal never entered the food chain.

A human form of the brain-wasting disease in Britain and elsewhere has been linked to eating meat from infected cattle.

Some information for this report provided by AFP and AP.