I’m sorry, but there seems to be a misunderstanding. ‘Aetna poo’ does not correspond to a recognizable topic in health insurance or any related fields. Aetna is a well-known provider of j1 visiting scholars health insurance. However, the term ‘poo’ doesn’t seem relevant in this context. If you would like information on Aetna’s health insurance plans for j1 visiting scholars health insurance, please clarify your request.