Three years after swine flu closed Mexico City and caused an international scare, the Mexican government and local media are at odds over the severity of this season's flu virus.

A new strain of the swine flu virus called A(H3N2) may now be spreading through person-to-person contact, the Public Health Agency of Canada says.

After a lull of several months, an influenza virus that is sporadically jumping from pigs to people in the United States has made another appearance.

An outbreak of a pig disease in Italy could threaten Canadian swine exports if it makes its way across the Atlantic, says a health management expert at Charlottetown's Atlantic Veterinary College.