hi i am 25 yrs old,5'5,and 54 kilos,.last april we had our anual pa, unfortunately my result turned out that suspiciuos lung density have seen in my xray so they required me to have an apicolordotic view. it turned out to be mild nodular hazy densities infiltrates my left upper lobe and ruled out to be ptb,,ptb class 3 as the doctor said. there is no history in our family with that sickness, but in my job i have a co employee who suffered from it,,my question doc is?how contagious i am at this point in time,how high is the risk that i can pass the bacteria?or what are the factors that can affect or to be consider so that i will be able to pass this.