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Effective Concept. Chart with keywords and icons on gray background
Business women touching the effective screen
Medical. Antiviral drug. Favipiravir is effective in treating Coronavirus, covid-19. design with drug, infected blood sample and stethoscope on blue background. Vector.
business man writing effective concept
How to help senior citizens. Seniors are especially at risk if infected. Immune system is less effective at fighting infections as we get older. Senior man wearing face mask and gloves outdoors.

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