First it was the flu [/blog/health/dr-hugh-gilgoff-talks-flu-and-vaccines], now it’s the norovirus [http://www.cdc.gov/HAI/organisms/norovirus.html]. The news networks are having a field day with this latest “superbug [http://abcnews.go.com/blogs/health/2013/01/26/doctors-warn-of-new-stomach-superbug-hitting-u-s/] ,” so we asked Dr. Hai Cao [/blog/