Why? Here's why:

From Seattle station KING:

COVID-19 vaccine boosters could mean billions for drugmakers
Billions more in profits are at stake for some vaccine makers as the U.S. moves toward dispensing COVID-19 booster shots to shore up Americans' protection against the virus.

How much the manufacturers stand to gain depends on how big the rollout proves to be.

Of course, maybe 20% of those billions get paid to our representatives in Congress:  campaign donations, speaking fees, lucrative Board Of Director's positions for their children, a nice week-long junket in Tahiti, lobbying...

There's your pandemic right there.