The US hasn’t learned lessons from the Covid-19 pandemic that it could use to mitigate the threat of pathogens like H5N1 bird flu that keep showing signs of their own pandemic potential, health experts told CNN Friday.

The Centers for Disease Control and Prevention (CDC) has confirmed the first severe case of bird flu in the United States, noting it has shown a “concerning” mutation, leaving health experts to warn about the risk of another pandemic.

A patient in Louisiana became severely ill after contracting Highly Pathogenic Avian Influenza (HPAI), the US Centers for Disease Control and Prevention (CDC) announced in a statement on Thursday. This is the first serious case of bird flu affecting a human reported in the US since the outbreak began.