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By Jamil Chade

RIO DE JANEIRO, BRAZIL - (Opinion) Last week, stock exchanges worldwide were told that in 2020 AstraZeneca had revenues of US$27 billion and doubled its profit compared to 2019. A few days ago, according to financial newspapers, Pfizer was projecting that sales of its covid-19 vaccine would yield US$15 billion in revenues.

All over social media, selfies abound of genuinely happy and emotional families toasting the arrival of a vaccine in the arms of grandmothers and grandfathers brimming with plans. The very human embrace that we have for amost a year been longing for, seems . . .

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