Rats are carrying Covid-19 and could spread it back to humans
![Rats are carrying Covid-19 and could spread it back to humans](https://i2-prod.walesonline.co.uk/news/uk-news/article26428661.ece/ALTERNATES/s615/0_brown-rat-2115585_1920.jpg)
This is one of the first studies to show SARS-CoV-2 variants can cause infections in the wild rat population
This is one of the first studies to show SARS-CoV-2 variants can cause infections in the wild rat population