In fact, the rate of hay fever went from 3 percent in 1970 to 22 percent in 2006, and the rate of allergic
reactivity on blood tests went from 20 percent in 1980 to 43 percent in 2006.
Not exact matches
The last
test we'll talk about is the cross-reactive food
reactivity; a
blood -
test for people who've worked
on their diet but still experience the same symptoms.
Serologic
testing at CDC utilized a Western blot (WB) assay that showed excellent sensitivity to MuLV and XMRV polyclonal or monoclonal antibodies, and no
reactivity on sera from 121 US
blood donors or 26 HTLV - and HIV - infected sera.