Where does classification of swine flu into three classes A, B and C come from. What medical literature? Best info on swine flu free- share with your patients and protect yourself too by teaching them.

English text and spoken - https://www.youtube.com/playlist?list=PLefecLMLF425hGfexwOOmQsxXeVLPCZlt Text Englsih and spoken Hindi - https://www.youtube.com/playlist?list=PLefecLMLF4250AyGalQ5aAB3ZpNAvzUx1 Spread awareness to protect yourself and your family. Dr Anup, MD dranup01@live.com