你知道吗，狗狗身上的细菌可是能传染给人的！它们通过各种途径传播，比如说人与动物共患疾病。这些疾病由微生物引起，如病毒、细菌、寄生虫等。你可能不知道，这些微生物可以通过唾液、粪便甚至是飞沫来传播。比如狂犬病，就是当一个感染了狂犬病的狗咬伤你时，你就会受到感染。而且，狗的粪便里有很多有害的细菌和寄生虫，它们可以污染你的饮食和物品。如果一个感冒或者发烧的狗在打喷嚏或咳嗽时，不要接近它，因为它会释放出带有病毒或细菌的小水珠，这样也会让人得病。

而且，dog's fur and skin often carry viruses, bacteria, mites, fleas etc. Some of them are the causative agents of diseases while others can act as vectors for transmission. If you don't take proper precautions when interacting with dogs, you might catch some common illnesses.

So it's important to know about these diseases and how they spread. Dog owners should learn about preventative measures like vaccinations and avoid behaviors that promote close contact between humans and animals. Keep a safe distance!