Changes

Caused by ''[[Dichelobacter nodosus]]''.

 

**Usually caused by [[Bacteroides|''Bacteroides nodosus'']] together with [[Fusobacterium|''Fusobacterium necrophorum'']]

**Moisture and trauma allow Dichelobacter nodosus to enter -> aids bacterial penetration of epidermis -> ''F. necrophorum'' invades -> necrosis and inflammation.

**Contagious, economically important disease

**Contagious, economically important disease

**Wet pasture and hydrated stratum corneum leads to colonisation by Gram positive cocci and [[Arcanobacter pyogenes|''Arcanobacter pyogenes'']], followed by ''F. necrophorum''; addition of ''D. nodosus'' causes footrot

**Wet pasture and hydrated stratum corneum leads to colonisation by Gram positive cocci and [[Arcanobacter pyogenes|''Arcanobacter pyogenes'']], followed by ''F. necrophorum''; addition of ''D. nodosus'' causes footrot

**Can lead to loss of hoof

**Can lead to loss of hoof

 

 

 

 

 

**Grossly:

**Grossly:

***Early lesions - red, moist, swollen, eroded interdigital skin  

***Early lesions - red, moist, swollen, eroded interdigital skin  

**Benign footrot (scald)- only interdigital ski affected, slight separation of heel horn

**Benign footrot (scald)- only interdigital ski affected, slight separation of heel horn

***Mostly the type occuring in cattle

***Mostly the type occuring in cattle

[[Category:To_Do_-_Caz]]

[[Category:To_Do_-_Caz]]