Water contaminated by both animal and human waste is the most frequent cause of transmitting bacterium and parasites into the human body.
(Water; contaminated; by both animal and human waste) (Water contaminated by both animal and human waste; is; the most frequent cause of transmitting bacterium and parasites into the human body)
Water Water contaminated by both animal and human waste
contaminated is
by both animal and human waste
the most frequent cause of transmitting bacterium and parasites into the human body