Flu experts say what they feared could happen -- has happened.
Late last winter, a panel of vaccine experts designing this season's flu shot had to make a tough choice.
They could either stick with last year's formula, even though a new strain of the flu bug was gaining strength -- or they could make a new vaccine, risking delays that could result in a shortage or maybe even no vaccine at all.
In the end, the panel voted to bring back last year's version. But now, that new flu strain has become the dominant variety, accounting for three-quarters of all cases as the disease got an unusually early start this fall.
About $83 million doses of vaccine were made, but no one really knows how much protection from the illness it gives. Vaccine experts say the choices they have to make show how tough it is to keep up with the flu virus, which mutates constantly.
wtvynews4.com Extended Web Coverage
When to receive the influenza vaccine
Source: http://www.cdc.gov/ncidod/diseases/flu/fluvac.htm ( The Center for Disease Control Vaccine Information Web site)
|7:00pm||Frosty The Snowman|
|8:00pm||NCIS: Los Angeles|
|9:00pm||The Grammy Nominations Concert Live!|
|10:00pm||WTVY News 4 at Ten|
|9:00pm||Law & Order: SVU|
|7:00pm||The Carrie Diaries|
|9:00pm||Primetime News at 9|