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Related Experiment Videos

Martha Carnalla1, Ana Basto-Abreu2, Dalia Stern3

  • 1Centro de Investigación en Salud Poblacional, Instituto Nacional de Salud Pública. Cuernavaca, Morelos, México.. mcarnalla@gmail.com.

Salud Publica De Mexico
|December 7, 2023
PubMed
Summary

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High SARS-CoV-2 antibody prevalence in Mexico, driven by infection and vaccination, was observed. Addressing specific age and regional barriers is crucial for future vaccination efforts.

Area of Science:

  • Immunology
  • Epidemiology
  • Public Health

Context:

  • The study assessed SARS-CoV-2 antibody prevalence, COVID-19 vaccination status, and vaccine hesitancy in the Mexican population.
  • Data was collected from the 2022 National Health and Nutrition Survey (Ensanut Continua 2022) between August and November.
  • The research included household members aged one year and older.

Purpose:

  • To determine the prevalence of antibodies against SARS-CoV-2 (anti-N and anti-S proteins).
  • To evaluate COVID-19 vaccination coverage, including the number of doses received.
  • To identify barriers and reasons for vaccine refusal among the Mexican population.

Summary:

  • Antibody prevalence against SARS-CoV-2 was high, with 94.4% for anti-N and 98.1% for anti-S.

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  • Among those eligible, 20.2% remained unvaccinated, while 33.6% had received three or more doses.
  • Vaccine refusal was reported by 11.2%, with barriers cited by 5.5% and vaccine unavailability by 3.2%.

    • Impact:

    • The findings indicate a high level of population immunity due to natural infection and vaccination in Mexico.
    • Understanding variations in vaccine refusal and barriers across age groups and regions is essential.
    • Tailored strategies are needed to intensify vaccination efforts and overcome specific challenges.