I watched this movie mostly because I am interested if flu and other infectious diseases, I am not a professional but have read enough literature and have taken several courses to be able to determine if the film is made realistic. This one IS. Most of the facts about flu, the way the people get infected and the course of the disease are authentic. The acting and the plot are decent too - this is a B TV movie so we cant expect it to be eligible for Oscar.
I don't agree this film suggests underground fears. Almost all the opinions of epidemiologist I have read are that flu is one of the biggest threats and chances are it will be next pandemic.
As one of the characters said - the question is not "IF" but "WHEN". Unfortunately this in not a script-writer's creation but a direct citation of what many epidemiologists say.