把蟑螂看作携带病原细菌并作为媒介传播人类疾病的昆虫仅有间接的证据。虽然蟑螂的习性及其身上和粪便有携带病原体的证据,不过,给它“定罪”仍属于嫌疑。 It is only indirect evidence that cockroaches are considered insects that carry pathogenic bacteria and transmit them as vectors. Although the cockroach’s habits and evidence of carrying pathogens in its body and its excrement, it is suspect that it should be “convicted.”