| All possible routes, including relay transmission by subclinically infected wild birds, must be thoroughly examined. |
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| Moreover, influenza is not highly contagious, most especially amongst asymptomatic, subclinically infected persons. |
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| Subclinically infected kidneys demonstrated initially only small inflammatory foci. |
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| The disease courses subclinically in some cases, while may result in mortality in other cases with developing shock and disseminated intravascular coagulopathy. |
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| Many patients present subclinically with subtle signs and symptoms. |
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