Styles and practices vary, but can we eliminate full stops in 'ie', 'eg', 'etc' and 'et al' in formal writing? He brought apples, oranges, etc to the picnic. Adhere to that one requirement, ie no gum chewing in class. I will bring apples, oranges, etc In attendance will be John Doe, Jane Doe et al Harry, Joe et al will be there. (Comma after 'Joe'?) Thanks.