You might want to pass on Alaskan walrus steak this weekend. The Centers for Disease Control and Prevention (CDC) says that there have been at least two outbreaks of Trichinella infections over the last year due to eating undercooked walrus meat. All total 10 children and two adults were sickened from eating the meat.

While Trichinella has been known to be in game animals such as bear or wild boar, it’s uncommon in walrus. The CDC recommends that when you cook walrus, check it with a meat thermometer and make sure it’s at least 160 deg F (71C) before eating.