we're seeing causing virus is this h3n2 virus. when we've seen h3n2 in previous seasons we've seen relatively severe seasons. it's possible we could have a severe season again this year. >> reporter: it's being widespread in 32 states approaching peak levels that we saw two years ago. doctors are seeing more patients. >> i was on a ship the other day. i saw about 35 patients. i saw ten positive flu swabs. and there was a couple i didn't even swab. i just treated them because it's so prevalent. we're definitely seeing a lot- >> reporter: the cdc is set to release its latest figures on how widespread the flu bug has become this coming monday. in the meantime they recommend getting a flu shot even though it may not prevent against it it may lessen the severity if you get sick. george howell cnn, chicago. >> joining me right now to talk