Richard Wenzel

The flu is spreading across the globe. To put this in perspective, we return to epidemiologist Dr. Richard Wenzel, who is Chairman of the Department of Internal Medicine at Virginia Commonwealth University.

The last few days we’ve been inundated with numbers and swine flu facts. Here to answer the Big Picture questions is Dr. Richard Wenzel, The Takeaway’s go-to swine flu epidemiologist.

Dr. Richard Wenzel helps us understand the symptoms, the causes, and the best ways to prevent transmission of swine flu. Ros Atkins, presenter of the BBC’s World Have Your Say, joins us with a look at how Mexico is handling the outbreak.

An outbreak of swine flu that started in Mexico appears poised to spread across the globe, with confirmed cases in California, Texas, Ohio and New York. The possibility of a pandemic is causing worldwide concern.

Anchor Lisa Mullins speaks with epidemiologist Richard Wenzel about a 1976 swine flu outbreak in the United States — and how the fight to contain and treat it then compares with authorities are facing today. Dr. Wenzel diagnosed some of the earliest swine flu cases in 1976.