Changes

==Diagnosis==

==Diagnosis==

==History and Clinical Signs==

===History and Clinical Signs===

Often a history of exposure to other dogs at either rehoming centers, bording kennels, or in a hospital etc. Direct contact or aerosol spread are the most common routes of infection.  

Often a history of exposure to other dogs at either rehoming centers, bording kennels, or in a hospital etc. Direct contact or aerosol spread are the most common routes of infection.  

Clinical signs develop 3-5 days after exposure. Signs are often mild and self limiting.  Affected dogs usually have a dry hacking cough which is likely to be exacerbated on exercise or excitement. Sometimes sneezing, [[Diseases of the nasal cavity and sinuses#Nasal discharge|serous nasal discharge]] and lymphadenopathy are present.

Clinical signs develop 3-5 days after exposure. Signs are often mild and self limiting.  Affected dogs usually have a dry hacking cough which is likely to be exacerbated on exercise or excitement. Sometimes sneezing, [[Diseases of the nasal cavity and sinuses#Nasal discharge|serous nasal discharge]] and lymphadenopathy are present.

Diagnosis is most often made on history and physical exam ruling out other causes of the cough.

Diagnosis is most often made on history and physical exam ruling out other causes of the cough.

==Laboratory Tests==

===Laboratory Tests===

[[Canine Haematology|Haematology]] and [[Canine Biochemistry|Biochemistry]] will help to look for an underlying cause of disease in immunocomprommised animals. Additionally they may show signs of infection including a [[Neutrophilia|Neutrophilia]] sometimes with a left shift.

[[Canine Haematology|Haematology]] and [[Canine Biochemistry|Biochemistry]] will help to look for an underlying cause of disease in immunocomprommised animals. Additionally they may show signs of infection including a [[Neutrophilia|Neutrophilia]] sometimes with a left shift.

==Radiography==

===Radiography===

Thoracic radiography and ultrasound are often unremarkable however may help to rule out other causes of the cough.

Thoracic radiography and ultrasound are often unremarkable however may help to rule out other causes of the cough.

==Endoscopy==

===Endoscopy===

Only considered when it is necessary to rule out a number of alternative diagnoses.  

Only considered when it is necessary to rule out a number of alternative diagnoses.  

Will enable collection of samples from the respiratory tract. Often no specific findings however, tracheal cytology may reveal increased numbers of neutrophils and bacteria. Samples for bacteriology from the upper airways may be deceptive as they are likely to harbour commensal organisms. Ideally samples should be collected from the lower airways by a transbronchial wash.

Will enable collection of samples from the respiratory tract. Often no specific findings however, tracheal cytology may reveal increased numbers of neutrophils and bacteria. Samples for bacteriology from the upper airways may be deceptive as they are likely to harbour commensal organisms. Ideally samples should be collected from the lower airways by a transbronchial wash.