but it's the type of market that concerns me. much like analysts say "its the quality of earnings" ...
the flu itself changes every year, so there's almost no benefit from having a legacy flu test. much like the flu vaccine, it they miss the guesses as to the expected flu strain this season then it's a total waste. also, having an inefective test that misses even just one year will destroy all confidence the doctors & public have in such a test, not to mention the lawsuit potential for failing to detect and later the person dies in part because of faulty test results.
extremely high yoy research costs, high mfg waste & spoilage costs, medium-to-high risks of high-dollar lawsuits, high marketing costs, very strong resistance from insurance companies to pay for unnecessary testing, extremely low margins...NO PROFITS.
of course, I don't even take the flu shot. I think it does more harm than good for MOST people. for elderly folks with bad immune systems, well that's different situation. I won't allow my kids to get it either because of the long list of side effects.