Cov khoom lag luam uas pabcuam kev noj qab haus huv ntawm cov pejxeem. Raws li WHO, cov khoom lag luam no yuav tsum muaj "txhua lub sijhawm, nyob rau hauv cov nyiaj txaus, hauv cov ntawv tsim nyog, nrog rau cov ntaub ntawv zoo thiab cov ntaub ntawv txaus, thiab ntawm tus nqi uas tus neeg thiab cov zej zog muaj peev xwm them taus".

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