A fresh addition to the list is SARS-CoV-2, the coronavirus behind the covid-19 pandemic now raging.这是经济学人文章的一个句子，想请教下里面句子结构和成份：后面now raging是不是现在分词修饰corobavirus，还是修饰pandemic, 如果raging转换定语从句which is raging，那看起来好像修饰前面得pandemic,所以到底是修饰coronavirus还是pandemic？自己的理解是behind the covid-18 pandemic是介词短语，介词短语是不是在句子种可以移位，所以which is raging是修饰coronavirus？谢谢！
