Marta Arroyave Cadavid

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OBJECTIVE Calculate the critical proportion (Pc) for achieving herd immunity based on a 2009 population study conducted in Medellin, Colombia, by age, globally and disaggregated by sex, location, and socioeconomic stratum. METHODS A survey of seroprevalence in the population was conducted by means of a random sample of 2 124 individuals aged 6 to 64 that(More)
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