Please choose the correct ending to complete the given sentence: Health: [header] How to properly place a tb skin test [title] Know how tb spreads. [step] The tuberculosis bacteria are airborne, meaning they are put into the air when a person with tb disease in their lungs or throat coughs, sneezes, speaks, or sings. If a person breathes in the bacteria, s/he can become infected.

Ending1: [title] Take your blood, and a close friend help (skin tests can be done by a trusted healthcare professional or with the patient). [step] Keep out of the areas that require the check by everyone else who is attending. Ending2: When infections spread to the skin, the entire body temperature rises and in some cases goes above freezing. Urine is obviously better at creating germs than bodily fluids, so you can buy new air testing bags to mist the infected person with. Ending3: [substeps] A person cannot get tb from touching people, shaking hands, or touching bed linens or toilet seats. A person cannot get tb by sharing food or drink, sharing toothbrushes, or kissing. Ending4: [substeps] Open sores around teeth, lips, tongue, or gums are also possible. In this case, only just 50% of the population who has tb has the bacteria in their lungs.

Answer format: ending1/ending2/ending3/ending4