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- W4206212436 abstract "The COVID-19 pandemic has unveiled health and socioeconomic inequities around the globe. Effective epidemic control requires the achievement of herd immunity, where susceptible individuals are conferred indirect protection by being surrounded by immunized individuals. The proportion of people that need to be vaccinated to obtain herd immunity is determined through the herd immunity threshold. However, the number of susceptible individuals and the opportunities for contact between infectious and susceptible individuals influence the progress of an epidemic. Thus, in addition to vaccination, control of a pandemic may be difficult or impossible to achieve without other public health measures, including wearing face masks and social distancing. This article discusses the factors that may contribute to herd immunity and control of COVID-19 through the availability of effective vaccines and describes how vaccine effectiveness in the community may be lower than that expected. It also discusses how pandemic control in some countries and populations may face vaccine accessibility barriers if market forces strongly regulate the new technologies available, according to the inverse care law.La pandemia de COVID-19 ha puesto al descubierto inequidades socioeconómicas y de salud en todo el mundo. Un control epidémico eficaz requiere el logro de la inmunidad colectiva, mediante la cual se confiere a las personas vulnerables una protección indirecta al estar rodeadas de personas inmunizadas. El umbral de inmunidad colectiva determina la proporción de personas que deben vacunarse para llegar a la inmunidad colectiva. Sin embargo, el número de personas vulnerables y las oportunidades de contacto entre las personas infecciosas y las personas vulnerables influyen en el progreso de una epidemia. Por lo tanto, además de la vacunación, el control de una pandemia puede ser difícil o imposible de lograr sin otras medidas de salud pública, como las mascarillas y el distanciamiento social. Este artículo trata sobre los factores que pueden contribuir al logro de la inmunidad colectiva y el control de la COVID-19 mediante la disponibilidad de vacunas efectivas y describe cómo la efectividad de las vacunas en la comunidad puede ser inferior a la prevista. También aborda cómo el control pandémico en algunos países y grupos poblacionales puede enfrentarse a obstáculos que dificultan la accesibilidad de las vacunas si las fuerzas del mercado son el principal factor que regula las nuevas tecnologías disponibles, como se indica en la ley de atención inversa.A pandemia de COVID-19 revelou iniquidades socioeconômicas e de saúde no mundo todo. Um controle epidêmico eficaz requer a obtenção da imunidade coletiva, em que indivíduos suscetíveis recebem proteção indireta por estarem rodeados de indivíduos imunizados. A proporção de pessoas que precisam ser vacinadas para se alcançar a imunidade coletiva é definida pelo limiar da imunidade coletiva. Porém, o número de indivíduos suscetíveis e as oportunidades de contato entre indivíduos infecciosos e suscetíveis influenciam o progresso de uma epidemia. Portanto, além da vacinação, o controle de uma pandemia pode ser difícil ou impossível de ser alcançado sem outras medidas de saúde pública, incluindo o uso de máscaras e o distanciamento social. Este artigo discute os fatores que podem contribuir para a imunidade coletiva e para o controle da COVID-19 por meio da disponibilidade de vacinas eficazes, e descreve como a eficácia das vacinas na comunidade pode ser menor do que o esperado. Também discute como o controle da pandemia em alguns países e populações pode enfrentar barreiras de acessibilidade às vacinas se as forças de mercado regularem fortemente as novas tecnologias disponíveis, conforme a lei dos cuidados inversos." @default.
- W4206212436 created "2022-01-26" @default.
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- W4206212436 date "2021-12-10" @default.
- W4206212436 modified "2023-10-17" @default.
- W4206212436 title "Global control of COVID-19: good vaccines may not suffice" @default.
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- W4206212436 doi "https://doi.org/10.26633/rpsp.2021.148" @default.
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