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Respiratory score
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No clinical signs of respiratory disease
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Breathing frequency of 35–55/min and/or occasional coughing
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Breathing frequency of 56–90/min and/or multiple coughing periods within 10 min and dyspnea
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Breathing frequency > 90/min and cyanosis or gasping or open-mouth breathing or breathing frequency > 90/min and cyanosis and gasping or open-mouth breathing
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Depression score
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Active, alert, normal ingestion
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Calm, alert, decreased ingestion
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Dull, increased recumbence, increased reaction time, still moving to the feeding trough but without or only small feed intake or dull, sitting like a dog, increased reaction time, still moving to the feeding trough but without or only small feed intake
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Apathetic, no reaction to stimulation and/or shaky movements without lying down and/or standing with head down without lying down and/or vomiting and/or foam around nostrils and mouth
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