The last time there was a major slowdown in the mighty network of ocean currents that shapes the climate around the North Atlantic, it seems to have plunged Europe into a deep cold for over a millennium.
A new Italian study finds that estimated relative vaccine effectiveness (rVE) was 49.3% for the bivalent (two-strain) booster and 26.9% for the monovalent (single-strain) booster, with protection lasting at least 4 months for the bivalent booster and waning fast for the monovalent version. The study appears in The Lancet Infectious Diseases.
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