Tuesday, April 8, 2008

Does chalk dust in the classroom cause primary complex/tuberculosis


Does chalk dust in the classroom cause primary complex/tuberculosis?

Respiratory Diseases - 2 Answers
Random Answers, Critics, Comments, Opinions :
1 :
no they dont, it will say on thhe packet none toxic!
2 :
What????? TB is caused by a mycobacterium, not chalk



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