Since the Omicron coronavirus variant was discovered, officials have said the best defense is vaccinations and getting booster shots.
Since the Omicron variant was discovered, officials have said the best defense is vaccinations and getting booster shots.San Francisco Health Director Grant Colfax recently presented early data to city health commissioners showing why getting a booster is so essential.
The vaccines were more effective against Delta. Vaccine effectiveness against symptomatic disease was 87% just after the second dose of a Pfizer or Moderna vaccination series, falling to about 43% when immunity wanes but climbing back up to 93% after a booster shot. By comparison, the British data show that, against Delta, vaccine effectiveness against symptomatic infection was also 88% shortly after the second dose of a Pfizer vaccine, falls to 64% about six months after the second dose, and then rises to 93% following the booster.early forecasts suggest a large surge of infections could be reached as soon as early January, and “the peak daily number of new infections could exceed previous peaks.
“And the vaccinated people, particularly the boosted people ... will either be protected from infection, or if they do get infected, they’ll have a relatively mild course of infection,” said Fauci, who expected a peak in Omicron cases soon, within a matter of weeks, followed by “just as dramatic a decline.”“Certainly, this is unprecedented to see this rapidity with which any individual virus spreads throughout the world. It is really extremely unusual,” Fauci said.
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