new category of americans as if they're entitled to more privileges. a study of the u.k. found that 10 weeks after the booster dose your ability to get the infection again goes up significantly. that's the efficacy against a positive result goes from 70% to 40% 10 weeks after the booster. >> julie: let's revisit the guidelines since they seem to change like the weather. isolate for five days if asymptomatic. five additional days of mask wearing. boosted individuals exempted from quarantine after exposure like you just said. moving on should we cancel new year's eve plans? that's the burning question of the hour. fauci says yes. he says if you're vaccinated, boosted, with family and relatives it's okay to stay home. if you plan on attending the new year's eve party with a larger group that's a different story. play the tape. >> talking about a new year's