The reason why dogs are not susceptible to the new coronavirus is mainly because their cell surfaces lack ACE2 receptors, and ACE2 is one of the receptors necessary for the new coronavirus to invade host cells. The ACE2 receptor is one of the key receptors for the new coronavirus to enter host cells. Studies have found that the ACE2 receptors of dogs, cats, pigs and other animals are different from the ACE2 receptors of humans. Their structures and sequences are also different, so dogs Dogs are not easily infected by COVID-19.
Although dogs are not susceptible to COVID-19, they still need to be careful because they may bring the virus into the home and spread it spread to others. Therefore, when interacting with dogs, you still need to pay attention to issues such as hygiene and social distancing to reduce the risk of spreading the virus.