Experts have found that rats in New York are infected with the new coronavirus and are concerned that new strains are likely to emerge among rat populations.

(Reuters)

[Instant News/Comprehensive Report] A new study shows that three different strains of coronavirus, including alpha, delta and omicron, have been found in rat populations that are common on the streets of New York City.

Experts worry that if these viruses spread among rat populations, new mutant strains may emerge, and said they will continue to understand the role of animals in Covid-19 to avoid possible secondary transmission of the virus from animals to humans.

Comprehensive foreign media reports, a recent study published in the microbiological journal mBio, whether there is an infection relationship between the mutant strain of the coronavirus SARS-CoV-2 in animals and humans.

The research data showed that 13 of the 79 research subjects recovered from Brooklyn were positive, which represented evidence that the variant caused the infection of street rats in New York.

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The researchers found that alpha, delta, and omicron can infect mice and highly replicate human upper and lower respiratory symptoms, while susceptibility varies with the type of mutation.

Dr. Henry Wan, the leader of the study, said that the purpose of this study is to understand whether SARS-CoV-2 has evolved into a new variant that poses a threat to humans among animal groups, and to understand the role of animals in the outbreak of the new crown. Contribute to further protection of human and animal health.

The US Centers for Disease Control and Prevention (CDC) stated that cases of human-to-animal transmission have been registered, but there has been a lack of direct evidence of animal-to-human transmission; J. Scott Weese, director of the Center for Public Health and Zoonoses at the University of Guelph, Canada It is believed that this research cannot change the situation of humans, and the possibility of humans being re-infected by others is far greater than that of transmission from animals to humans.

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