A flesh-eating parasite is prompting changes to import rules. The parasite in question is the New World screwworm, a dangerous threat to livestock. To protect livestock, tighter requirements are being implemented for cattle originating from Mexico.

These new rules aim to safeguard against the spread of the parasite. The goal is to prevent the parasite from affecting state livestock.

Further information on the new import rules and the parasite is available from the source. Details on the implementation and enforcement of these rules are also expected to be found there.