Before revision:  Due to its highly contagious nature, it has spread rapidly, resulting in major disruption to public health. In addition, it has also had a severe negative impact on the world economy. As a result, it is widely recognized now that widespread testing is key to containing the spread of the disease and opening up the economy. However, the current testing regime  has been unable to keep up with testing demands  .
After revision:  The current testing regime has been unable to keep up with testing demands .