OK so gum with "bio engineered ingredients" is one.
In the 70s slang what "car you drive" has to do with how you avoid being sickened with this disease. So food is one. Drugs is another. Writing constantly is one. And so on. That the phones are bugged is one way the disease is being propagated because it allows people to "undo" whatever you do to stop the spread of the illness.
Additionally once you start coughing up the (for lack of a better term) "philosophers illness" everyone around you will become worried if you're in stores because there will be a run on food items to see if someone can buy what you touch and thereby get the same sick that you have (and thereby be treated similarly) - if you have the Schopenhaurer illness and you're generally a good person other people will attempt to get the same sick so they're in the same "social sickness box" as you are. So there's a social component of people that want to be sickened with you for social reasons.
The "social sickness box" are in essence the limits of the box you're in placed on you by the people attempting to contain the virus. Bad boxes involve violence or threats of violence and seriously messed up social conditioning.
So if someone starts coughing up the disease and there's a run on the stores act casual and don't touch a bunch of stuff just to do it but buy food and get out. Wearing a mask probably just makes it worse for social reasons, plastic in the mask, and potential social antibodies.
What else? There's street slang in San Francisco that either says macro or macro idiot. This has to do with people that are unwilling to get high to fix or kill off the illness. As opposed to microchips. Additionally once you have the philosophers disease constant exposure to smoke is bad for you. Let's see what else. Oh. And most of the graffiti is of the sort where it appears to have no meaning but then a full analysis with all prior information yields -
- macro as opposed to microchip
- macro as macrobiotics as macro go bars in the checkout isle (which are all organic, but won't kill off the Schopenhaurer disease)
- macro as someone that's fat.
So a Micro-chip would be someone that writes or hacks something and then gets aooroavl for existing from gangs. You use the information networks for either "good or bad". This sort of thing is more or less everywhere in the graffiti.
You should also look at the towns at the end of the train lines in Oakland. These serve as the religious "appendix" of the city and act as disease carriers. They've essentially emptied out of people that all brought their illness into the city. I don't know how true this is elsewhere, but it's unique from other cities I've been to (most of which tend to freeze and so are much less prone to having biological illness problems).