OriginalTweet: Today @ 2PM, join @NYCSeniors for a webinar on the science of the Covid-19 vaccine. A stellar lineup of experts will present the facts on the vaccination, helping older New Yorkers—and older adults everywhere—know that they can confidently #GetVaccinated: https://t.co/jPUbUrOS1P https://t.co/ccL9ufDxke