VMD-0089
QUESTION
Which of the following is not a major mastitis pathogen?
OPTIONS
(A) Staphylococcus aureus
(B) Streptococcus agalactiae
(C) Escherichia coli
(D) Staphylococcus Hyicus
ANSWER
(D) Staphylococcus Hyicus
EXPLANATION
Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli are major mastitis pathogens of dairy cattle. Staphylococcus hyicus can occasionally be isolated but is not generally classified among the major classical mastitis pathogens, making it the exception.
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