狗狗上呼吸道感染是什么原因

狗狗出现上呼吸道感染,大多是周围生活条件很差,不注意卫生,平日缺乏锻炼,防御功能低下。天气寒冷容易引起鼻部粘膜舒缩功能紊乱,会导致狗狗的上呼吸道发生感染。狗狗上呼吸道感染90%左右由病毒引起,细菌感染常继发于病毒感染之后,通过含有病毒的飞沫或经污染的用具进行传播。

狗狗上呼吸道感染是什么原因

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