Tuberculosis skin test almost positive. what does this even mean?

Exposed to TB: It means you have been infected by the TB or similar organism ...Further testing or evaluation is needed to see if the infection is active and causing illness and /or what treatment is needed.

Almost?: The TB skin test is interpreted differently depending upon the persons risk of activating tb. If truly positive, it means that you have been exposed to TB at some time, not necessarily recently, and taking all comers, there is an about 10 percent chance of getting active disease.