Disease-causing microbes have a negative impact on the body, and harmful microbes that cause diseases are called pathogens. Given these facts, what effect do pathogens have. among the following options:
- Something with a head, thorax, and abdomen
 - none
 - healing
 - single-celled organisms
 - a negative impact on the body
 - influenza orthomyxoviruses
 - good health
 - depress neuronal excitability


 

     a negative impact on the body    