Follow the money.
If money is the concern, then no medical professional anywhere would encourage people to get vaccinated. A flu shot costs ~$20. Compare that with the cost of a doctor visit (variable co-pay) and prescriptions ($52 minimum for Tamiflu, plus the painkillers, decongestants, etc.) or the cost of a hospital stay (which can quickly cost thousands). And then, if the person dies from the flu, as some 3,000-60,000 do every year in the US, funerals are also pretty pricy. There is a lot of money to be made all around through people getting sick--not so much by people getting vaccinated and avoiding sickness.
Actually $40 for the quad version this year at Rite Aid in northern Michigan, where eggs are only 50 cents, btw and the cost of living is known to be very low.