Common pathogenic characteristics of the six pathogens Related to seasonal climate and residential environments Attack the body separately or simultaneously with two or more Can intertransform after invading the human body Invading the body through the skin or the mouth and nose or both Common pathogenic characteristics of the six pathogens • Related to seasonal climate and residential environments • Attack the body separately or simultaneously with two or more • Can intertransform after invading the human body • Invading the body through the skin or the mouth and nose or both