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Transmission probabilities:
p00: tp from unvaccinated infective to unvaccinated susceptible p01: tp from vaccinated infective to unvaccinated susceptible p10: tp from unvaccinated infective to vaccinated susceptible p11: tp from vaccinated infective to vaccinated susceptible To estimate the effect of a vaccine in reducing susceptibility, compare the ratio of p10 to p00. To estimate the effect of a vaccine in reducing infectiousness, compare the ratio of p01 to p00. To estimate the combined effect of a vaccine, compare the ratio of p11 to p00. |