A more esoteric way motorists can kill you.

Perhaps I'm the only cyclist who's received a shower courtesy of drivers deploying their windscreen washers.

Surely it happens a lot to urban pedalists?

I cycle in the tropics, so until now I've been grateful for a cooling shower, but not any longer.

Scientists have discovered a common source of the causative organism of "Legionnaires disease" is car driver's screen-wash bottles. It is thought to be causing up to 20% of cases of the dreaded disease.

"Windscreen water infection risk"
https://news.bbc.co.uk/2/hi/health/10293519.stm

The bug grows best in warm moist incubators like; shower-heads, air conditioning units, sweaty Foreign Legion dormitories, and under car bonnets.

Researchers found drivers who failed to add detergent to their screen-wash, and drove with their windows ajar, had a significantly higher incidence of the often fatal disease.

England's most famous cricket scorer ("The Bearded Wonder") died last year from the bug, which he caught by simply breathing infected conditioned air in a Middle Eastern hotel.

So add a face-mask to your; body-armour, gauntlets, and helmet.

It's a lot of fun in New England (or any place it frequently snows) in the winters - everyone switches to a bottled windshield fluid that contains alcohol and is died blue. If they don't the windshield the windshield sprayer freezes and there is no way to get the caked salt and sand off the windshield without stopping - it's especially bad on bright days right after a snowstorm.
When cycling on the first warmish day after a storm you tend to get covered with the road spray from the cars and, very infrequently, a squirt of nasty blue fluid from a partly clogged sprayer.
I'm not too sure which is worse.

In the local Daily Herald on line, the comments to the “letters to the editor” section has a frequent poster who claims to activate their windshield washers out of spite any time they pass a pack of cyclists. The comment always receives a lot of thumbs up from other readers.

It could be worse...

In the Middle-East and Asia there's a ubiquitous habit of "hawking", which is unrelated to ornithological blood-sports.

Earlier today, I draughted a commuting motorcyclist who was riding a small Honda.

"Mister" was on autopilot, "Missus" was nodding off on his pillion, occasionally rousing herself to evacuate her oro-nasal cavities stage left.

I had to remain alert and briskly echelon right to avoid mucoid-missiles at the appropriate moment. Both were oblivious of me a yard behind their wheel for the previous 15 km.

There's a lot more pathogens than Legionnaire's disease in Asian "Greenies".
HIV, TB, Leprosy, Herpes, Hepatitis, Mycoplasmas, H5N1, Sars, etc...