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Pfizer says COVID booster adds protection against omicron

Blood samples taken a month after a booster showed people had levels of omicron-neutralizing antibodies that were similar to amounts proven protective against earlier variants after two doses.

For some virus patients, doctors try to move away from ventilators

NEW YORK — As health officials around the world push to get more ventilators to treat coronavirus patients, some doctors are moving away from using the breathing machines when they can.