septemviral

例句：

1. 1. The study found that septemviral infections were responsible for a significant portion of the disease.
   研究发现，七种病毒感染是导致这种疾病的主要原因。
2. 2.The research team identified several new septemviral strains.
   研究小组发现了几种新的七种病毒株。
3. 3. The virus is spread through contact with infected individuals and can cause severe respiratory illnesses in humans.
   这种病毒通过与感染者接触传播，并能在人类中引起严重的呼吸系统疾病。