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variantes omicron

Omicron Appears to Evade Vaccines Better Than Other Variants

Two dozes of the Pfizer/BioNTech COVID-19 vaccine provided just 33 percent protection against infection during a surge in infections in South Africa that is dominated by the new Omicron variant, according to preliminary analyses announced today (December 14) at a press briefing by Discovery Health (South Africa’s largest private health insurer) […]

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Moderna’s Third Dose Boosts Antibodies Against Omicron

A third dose of Moderna Inc.’s Covid-19 vaccine increased antibody levels against the omicron variant, results the company described as reassuring while it works on a shot tailored to the new strain. A 50 microgram booster dose produced a 37-fold increase in neutralizing antibodies, the company said in a statement Monday. […]

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