The 'when' question is just one of the topics 9NEWS viewers wanted 9NEWS Medical Reporter Dr. John Torres to discuss Wednesday on 9NEWS 8 a.m.

One viewer wanted Dr. John to explain the difference between H1N1 and seasonal flu symptoms.

"The big difference is there is no seasonal flu yet," Dr. John said. "That will probably come in November time frame. The other difference is the H1N1 is really attacking a lot of respiratory areas, so it's really getting deep into the lung so that's probably the biggest thing. You have a cough, body aches, and fever, with the regular flu you have a little bit of cough but not as much, body aches and more diarrhea probably."

Another viewer wanted Dr. John to confirm a rumor that a vaccination permanently protects people from the H1N1 flu.

Dr. John says the vaccine will only protect you for a year or so.

"It will probably mutate, and because it's going to mutate, this vaccine probably won't work against it this year number one and number two, you have to have documented H1N1 in order to not have to get the vaccine and so a lot of people are told they have H1N1 but we're just making an educated guess."

To hear the answers to other questions, click on the video link.

Dr. John will answer more viewer questions next Wed., Oct. 28. E-mail mornings@9news.com.