[matthews2]

What is the link between car washing and spreading bird flu?

[dist-epoch]

Car visits a farm with infected chickens, picks up dirt with viruses on the wheels, brings it into cities.

This is one way how it spreads from farm to farm.

[agilob]

We have lots of trees in the area, it was said not to get close to bird poops and avoid contact with water where birds pollute.

[tim333]

I'm presuming birds poop on cars, spraying the cars with a hose puts droplets of it in the air.