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Analysis: Vaccination without lockdown could turn Brazil into a super-powerful strain “factory”

RIO DE JANEIRO, BRAZIL - British researchers point out that large-scale contact between vaccinees and the Manaus variant may produce mutations capable of completely evading vaccine efficacy.

The current scenario in Brazil, which combines the start of vaccination with uncontrolled Covid-19 transmission, may turn the country into a "factory" of strains potentially able to completely evade the vaccines' efficacy. This is the assessment of British scientists directly involved in some of the leading studies on coronavirus mutations.

Researchers from Imperial College London and the University of Leicester argue that lockdowns and other containment measures are of particular relevance during . . .

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