is streptococcus harmful or beneficial
Streptococcus bacterium causes throat infections and some streptococcus species are even fatal. Though bacteria are mostly beneficial for the human body but if the person is weak and his immune system does not fight against diseases then these beneficial bacteria can also cause infections in the body.hough bacteria are mostly beneficial for the human body but if the person is weak and his immune system does not fight against diseases then these beneficial bacteria can also cause infections in the body.