VMC-0033
QUESTION
The period of isolation of equine influenza is for at least?
OPTIONS
(A) 15 days
(B) 21 days
(C) 31 days
(D) 41 days
ANSWER
(B) 21 days
EXPLANATION
Equine influenza control programs use an isolation period of at least 21 days because infected horses may shed virus for a prolonged period and can transmit infection before complete recovery. Therefore option B is correct; 15, 31, and 41 days are not the standard minimum period given in this question.
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