'Investiga que no es poco' 

https://invest-iga.org/2021/09/04/contagian-menos-los-vacunados-para-la-covid19/ 

https://invest-iga.org/2021/08/18/una-vision-global-sars-cov2-vacunas-delta-inequidades-y-dosis-extra/

https://invest-iga.org/2021/08/04/que-cambia-la-variante-delta-del-sarscov2-en-salud-publica/

Blog de Antonio Gutierrez

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