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Respiratory Parasitic Infections - Pathology (view source)
Revision as of 21:19, 6 August 2008
, 21:19, 6 August 2008no edit summary
***Majority of worms are expelled
***Majority of worms are expelled
***In 25% of cases clinical signs may reappear as a result of alveolar epithelialisation
***In 25% of cases clinical signs may reappear as a result of alveolar epithelialisation
***May be together with [[Lungs - ventilation#Emphysema|interstitial emphysema]] and [[Lungs - circulatory#Pulmonary oedema|pulmonary oedema]], or secondary bacterial infection
***May be together with [[Lungs Ventilation - Pathology#Emphysema|interstitial emphysema]] and [[Lungs - circulatory#Pulmonary oedema|pulmonary oedema]], or secondary bacterial infection
*Reinfection syndrome:
*Reinfection syndrome:
**Immune cattle show clinical signs only if exposed to large numbers
**Immune cattle show clinical signs only if exposed to large numbers
*Histologically:
*Histologically:
**Catarrhal and eosinophilic bronchitis and bronchiolitis
**Catarrhal and eosinophilic bronchitis and bronchiolitis
**Possibly [[Lungs - ventilation#Atelectasis (Collapse)|atelectasis]]
**Possibly [[Lungs Ventilation - Pathology#Atelectasis (Collapse)|atelectasis]]
*Rarely becomes extensive
*Rarely becomes extensive
*May transmit [[Respiratory Viral Infections - Pathology#Swine influenza|swine influenza]]
*May transmit [[Respiratory Viral Infections - Pathology#Swine influenza|swine influenza]]
*Larvae may be infected with [[Respiratory Viral Infections - Pathology#Swine influenza|Swine influenza]]
*Larvae may be infected with [[Respiratory Viral Infections - Pathology#Swine influenza|Swine influenza]]
*May cause severe pneumonia in calves housed where infected pigs were housed previously
*May cause severe pneumonia in calves housed where infected pigs were housed previously
*Cause diffuse [[Lungs - inflammatory#Interstitial pneumonia|interstitial pneumonia]] with haemorrhage, [[Lungs - ventilation#Atelectasis (Collapse)|atelectasis]], [[Lungs - circulatory#Pulmonary oedema|interlobular oedema]] and [[Lungs - ventilation#Emphysema|emphysema]]
*Cause diffuse [[Lungs - inflammatory#Interstitial pneumonia|interstitial pneumonia]] with haemorrhage, [[Lungs Ventilation - Pathology#Atelectasis (Collapse)|atelectasis]], [[Lungs - circulatory#Pulmonary oedema|interlobular oedema]] and [[Lungs Ventilation - Pathology#Emphysema|emphysema]]