Streptococcal infections
Streptococcal mastitis
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It is an obligate parasite of the bovine mammary glands
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It is a specific contagious disease of cattle transmitted from cow to cow by means of milker’s hands or contaminated milking equipment
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Bacteria enters through teat canal, colonise within the ducts, ductules and acini.
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Streptococci do not invade deep into interstituim of the gland
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Epitheluim is affected with infiltration of neutrophils and later by macrophages, prolicerative fibroblastic connective and nodules of lymphocytes
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Cystic dilatation of ducts with papillary projection
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Acute inflammatory reaction is later followed by fibrosis of gland
Urogenital infections caused by S. canis in dogs and S. zooepidermicus in horses
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Vaginitis
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Cervicitis
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Endometritis
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Placentitis
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Abortion
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Urethritis
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Pyelonephritis
Cervical lymphadenitis of pigs
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Swine strangles, jowl abscess. Characterized by absceses
Streptococcal meningitis and Arthritis in pigs
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Young pigs affected by S. suis
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Organism enters through oral and respiratory route
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Pharyngitis, cervical lymphangitis
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Fibrinopurulent meningitis and polyarthritis
Neonatal streptococcal infection
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Suppurative polyarthritis (joint – ill)
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Meningitis
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Navel ill
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Localization in valvular endocardium, kidneys, choroid of eye
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Last modified: Tuesday, 20 March 2012, 6:55 AM