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“Medical-prophylactic Affair” gives qualification of a 1 _______ doctor assistant, who prevents appearance and 2 _______ of infections and other kinds of the diseases. He controls the influence of the 3 _______ of work and life on a person’s health and takes some measures to prevent this harmful 4 _______ of the surroundings. They work in the centres of state sanitary inspectors and laboratories of different branches.
sanitary
spreading
conditions
influence