许多严重的传染性疾病导致的病症和死亡，实际上是营养不良所致。营养不良使身体经受不住感染的侵袭。
Many symptoms and deaths caused by serious infectious diseases have, in fact, their roots in malnutrition, which makes our bodies much more vulnerable.
通常与传染性支气管炎病毒，新城疫病毒和大肠杆菌等病原协同感染，导致呼吸道症状加剧，使死亡率增高。
Usually chickens suffered co-infection with Infectious bronchitis, Newcastle virus or Escherichia, and led to forced-breathing and increased mortality.
为什么艾滋病使患者容易感染某些癌症和传染病？
Why does AIDS predispose infected persons to certain types of cancer and infections?
为什么艾滋病使患者容易感染某些癌症和传染病？
Why does AIDS predispose infected persons to certain types of cancer and infections?
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