Question
In S-l-R models, if the reproductive ratio Ro > 1, the
infection becomes an epidemic.
O population is immune to the infection.
population becomes resistant to the infection.
O infection fails to take hold in the host population.
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In S-l-R models, if the reproductive ratio Ro > 1, the infection becomes an epidemic. O population is immune to the infection. population becomes resistant to the infection. O infection fails to take hold in the host population.

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