Many of them are insidious with a low mortality rate; consequently 
the losses are not glaringly apparent. 
The mycotic (fungus) diseases are usually sporadic and occur 
most frequently under conditions most suitable for the fungi. 
Local outbreaks of those forms of granulomas, mastitis, dermatitis, 
lymphangitis, and stomatitis that are caused by pathogenic fungi 
sometimes cause heavy losses. Since there is little information 
on the incidence of mycotic diseases, the comments below relate 
only to bacterial diseases. 
Anthrax 
Anthrax is an acute, highly fatal disease of cattle, sheep, and 
horses, and it frequently assumes a chronic character in swine. 
The causative organism and its spores are infectious for man. The 
annual loss in cattle is $10,000, in horses $,000, in swine 
$9,900, and in sheep about $1,000, 
Brucellosis 
In cattle the greatest losses from brucellosis are due to abortions, 
decreased milk supply, and sterility. It has been estimated that 
brucellosis costs the cattle industry $87 million annually, plus a 
control cost of $1 million. The loss due to sterility only is 
estimated at $59 million and is not included in the over-all loss 
estimate. 
In goats losses are due to abortions, decreased milk supply, and 
sterility. 
In swine the principal losses are due to abortions, sterility, 
and posterior paralysis. 
Brucellosis is equally a public health problem, since man is also 
susceptible. 
Erysipelas of Swine 
This disease assumes various forms from subacute to chronic in- 
faction. The principal losses are due to death, loss of weight, 
and impaired growth. The causative organism is infectious for 
humans. The estimated annual loss is over $2) million. 
Foot Rot 
Foot rot causes lesions in the feet of cattle and sheep with 
consequent painful lameness. Affected animals lose weight and 
cows produce less milk. 
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