According to lead poisoning advocate Tamara Rubin's website Lead Safe Mama, vintage (i.e., pre-2005) Corelle brand dishes contain varying levels of lead that may be considered unsafe. Per an email ...

In 2021, the New York Health Department stated that there were 15 cases of lead poisoning in connection with "non-foodsafe clay pots, cups and dishes (ceramic ware) for cooking or serving foods ...