31. However the pathogenicity of H5N1 / 97 was related to the nonstructural ( NS ) gene. 32. Having achieved a low pathogenicity , over time, variants more successful at transmission will be selected. 33. For example, AIDS accentuates the damage and pathogenicity of " E . histolytica ". 34. This close association between hyperinsulinemia and conditions of metabolic syndrome suggest related or common mechanisms of pathogenicity . 35. It distinguished itself from other known Australian " Armillaria " species by its aggressive pathogenicity . 36. This T3SS is a pathogenicity factor that is required by the pathogen in order to cause disease. 37. In contrast to both of these, synthetic are strictly made in the lab to combat pathogenicity . 38. The mechanism of " L . fusiformis " pathogenicity is not well understood by microbiologists. 39. The pathogenicity of an organism-its ability to cause disease-is determined by its virulence factors. 40. The virus causes a very mild immune response, lending further support to its apparent lack of pathogenicity .