Many compatriots have pets at home, and kittens and puppies are the most common members. At present, the COVID-19 pandemic has entered a tough battle stage, and every day I can see the winners sharing their experiences in my circle of friends. In the past, medical blind people who could not distinguish between infection and inflammation were able to grow rapidly and iterate and skillfully detect, prepare medicine, and reduce fever. However, although some people can calm their infections, they are particularly worried about their children. If the shit shoveler is infected, will he spread the virus to Ah Miao and Ah Wang? Will there be cases where people are just sick, cats are sick, or dogs are sick, or people are infected? If you encounter such an unfortunate situation, what should you do?
Search literature and found that the first paper was published on the preprint platform by our team from Harbin Veterinary Research Institute in March 2020. In May 2020, it was officially published in the magazine " Science ". The study found that the replication efficiency of the new coronavirus in ferret and cats is relatively high, while in dogs, pigs, chickens and ducks, the replication ability is relatively weak. It was also discovered that the new coronavirus can spread between cats through respiratory droplets. At the same time, scholars in Wuhan found that during the epidemic, the new coronavirus infected local cats, and some cats in the homes of patients with new coronavirus have antibodies to the new coronavirus. In the early stages of the epidemic, there was also a cat in Belgium and two dogs in the Hong Kong Special Administrative Region. After the owner was diagnosed, he was tested positive for the new coronavirus.
It is worth noting that these early studies of the epidemic have also been questioned. For example, experts from the World Health Organization Animal Coronavirus Reference Laboratory pointed out that the relevant research is just a small-scale test. During the research process, high concentrations of the new coronavirus are injected into the cat's nose. This method is different from the interaction between people and pets in real life. The noses of five cats were injected with viruses, but there were no symptoms of disease. Six days later, the upper respiratory tract of two cats was tested and viral nucleic acids and infectious virus particles were found. The other three cats were found in an adjacent cage with three cats that did not receive the virus injection. Among them, one of the cats closely connected with them was detected in the body of the viral nucleic acid. A similar situation also occurred in 5 puppies and 2 puppies' feces, and viral nucleic acid was detected, but no infectious viral particles were found.
The news that makes the vast number of poop shovelers on this planet feel a little relieved is that scientists believe that although the new coronavirus can be transmitted from cats to cats through respiratory droplets, the infection rate in cats is not high, and in dogs, the infection rate is even lower. Therefore, shovelers don’t have to panic, and there is no reason to discard or slap the cat. However, the Earthlings quickly launched a performance that took off their anger on animals. In November 2021, an employee of a pet store in the Hong Kong Special Administrative Region was infected with the new coronavirus. epidemiological survey showed that the transmission chain caused three people to be infected. Gene sequencing found that the virus infected by the employee was consistent with the genome sequence of the virus in hamsters imported from Dutch in pet store.
So, the hamster was stared at. Relevant managers inspected all pet stores selling hamsters, required customers to hand over the hamsters they purchased before December 22, and carried out so-called humane treatment on more than 2,000 small animals. It is estimated that according to the convention, they will kill first, then burn, and then bury them deeply. In addition, since 2020, the Netherlands, France, Spain, Denmark, etc. have successively hunted minks on a large scale because positive samples were found in the breeding farm. Have you stripped down mink ? have no idea.
At the beginning of the COVID-19 pandemic, scientists focused on virus mutation and transmission trends, and at the same time, they were also paying attention to the dynamics of the animal world. In March 2021, the B.1.1.7 variant was found in the UK, South Africa and other places. Data shows that this variant, which accounts for 95% of all new infection cases, is more easily transmitted and has higher fatality.At the same time, a veterinary referral center in suburbs of London found that the number of cats and dogs with myocarditis increased sharply, with the incidence rate rising from 1.4% to 12.8%. These pets were drowsy, lost appetite, shortness of breath, and fainting. Examination found that the level of troponin increased, and there was pleural effusion or pulmonary edema. Pet owners have had positive COVID-19 tests and respiratory symptoms 3 to 6 weeks before the pet becomes ill. Veterinarians tested serum samples of 8 cats and 3 dogs, nasopharyngeal and rectal swabs, and found that some pets were carrying mutant strains of the new coronavirus. The conclusion is that the owners spread the virus to their pets.
Scientists have been closely observing the spread of the new coronavirus in wild animals, and are worried that this phenomenon will lead to out-of-control mutations. In April 2022, a research team from the United States and Canada published a paper in the journal Nature . Researchers detected positive nucleic acid of the new coronavirus in hundreds of white-tailed deer , and found that the virus showed long-term and independent evolutionary traces in the deer and may be transmitted to humans. Up to now, the research results show that more than 30% of white-tailed deer have been infected with the new coronavirus and carry three variant strains, one of which is closely related to the epidemic in the human population. The spike protein receptor binding region of these variant strains has amino acid replacement, which is rarely observed in humans. Scientists are worried that white-tailed deer will become the permanent host of the new coronavirus, and may infect herbivores such as sheep, goats, dairy cows that share the ranch with white-tailed deer, resulting in the mutation, evolution and reorganization of the virus, becoming the source of the epidemic in other animals, including humans. Therefore, it is necessary to strengthen monitoring to prevent the return of the prevalent variants in animals to humans.
It should be noted that in 2021, Qin scholars have reported the first case of tabby cat transmitting the new coronavirus to a veterinarian. The infection process is when the veterinarian was testing the cat, and the cat sneezes at the veterinarian who was wearing a mask and gloves but not wearing goggles. So, how do shovelers overcome difficulties with their masters during the epidemic? Experts from the US Centers for Disease Control recommend that if pet owners are infected with the new coronavirus or are quarantined at home, contact with their pets should be restricted, avoid direct caressing, hugging, kissing, and not sharing food and bed with their pets. At the same time, avoid taking pets to places with many people and many pets to avoid cross-infection.
Whoever you love, pass on your health to.
Your health, my attention. Professionals observe health from a scientific and humanistic perspective, including series such as express reports, details, reminders, doubts, opinions, historical remarks, etc. The content is original works of the author Wei Hongling and the team. Refusal of all forms of misappropriation and reproduction without permission, otherwise it will be pursued in accordance with relevant laws.
