In these cases the virus rapidly destroys the lungs' alveoli, where gas transfer occurs, often causing acute respiratory distresssyndrome (ARDS), which usually kills in half of all cases.
Hendra should be suspected if there is also the proximity of bats, or the presence of human cases of acute respiratory distresssyndrome or encephalitis.
如果附近有蝙蝠，或者出现人类急性呼吸窘迫综合征或脑炎，则应怀疑是亨德拉病毒。
3
Etiologies of respiratory distress are numerous and include pneumonia, acute respiratory distresssyndrome, pulmonary embolism, and exacerbations of chronic obstructive lung disease.