Confused by guidelines on quarantine after vaccination? You're not alone

(CNN) -- Fully vaccinated people can now skip quarantine even if they've been exposed to Covid-19, according to new guidelines from the US Centers for Disease Control and Prevention. But at the same time, the agency also acknowledges there's a lot researchers don't know about how vaccines impact transmission.

The new guidance only applies if it has been at least two weeks since your final dose, no more than three months since that dose, and provided you don't develop symptoms.
"It's important to note that CDC is not suggesting someone who is vaccinated cannot spread COVID-19 within the first 90 days of being fully vaccinated, nor are we suggesting that expected protection from COVID-19 vaccines wears off after 90 days," CDC spokeswoman Kristen Nordlund told CNN by email. "The three months aligns with what CDC currently recommends for persons with natural infection, and we will continue to evaluate this period as we get more information on duration of protection from the vaccines."

Confused? Don't worry, you're not the only one.

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