The physician discussed problems faced by everyone, and the response was positive.

This is a compound sentence I would think no comma is necessary.

6 answers

Please don't switch names. It's unnecessary.

http://grammar.ccc.commnet.edu/grammar/commas.htm
#2
Sorry Writeacher we are having a study group and we are all using same pc. I will tell all we can use same name...thank You
OK.

Did you get the idea about commas and compound sentences?
PS -- It's the rare compound sentence that DOESN'T need a comma!!
Yes I did the site was very helpful. We are going through our print out now..thank You
You're very welcome. =)