Some great science-based info in the link from various researchers about the virus strains and mutations, which are not necessarily a bad thing.

[link to news.yahoo.com (secure)]

*I must say I disagree with the final paragraph but I feel it is important to keep the masses from suspecting lab involvement. When you consider that the mentality of a good chunk of society is that of the toilet paper hoarders, there is good reason to keep suspicions under wraps.