Focus Taiwan reports that the ban will not apply to one-day-old chicks or chickens raised indoors and sent directly to slaughterhouses, COA Minister Lin Tsung-hsien said.

Eggs that have been washed or sanitised and certified by COA-contracted veterinarians can also be transported for sale, he said.

Since 6 February, six farms in Hualien, Tainan, Chiayi and Yunlin have been confirmed as having been infected with the highly pathogenic H5N6 avian influenza virus, according to the COA's Bureau of Animal and Plant Health Inspection and Quarantine.

The outbreak of H5N6 has put authorities on high alert because it is both highly contagious and transmittable to humans, Focus Taiwan reported.

Since October 2016, this new A-type influenza has been found at 340 poultry farms in South Korea, resulting in the culling of nearly 33 million birds.

In Japan, 201 wild birds have been confirmed infected with H5N6 over the past three months and the virus has hit 10 poultry farms, resulting in nearly 1.4 million birds being culled.