Bird flu, which has spread globally, is also having an increasing impact in Japan. Several poultry farms in Japan found to be infected with avian flu, and many of the birds there were culled. As a result, the supply of domestically produced eggs has decreased dramatically, affecting prices. The domestic average wholesale price continues to rise, from USD 1.88/kg on January 5, 2023, to USD 2.63/kg on March 31, 2023, an increase of 1.4 times. However, some contend that the price is still low compared to other countries. The global epidemic shows no signs of ending and remains uncertain.