When President Biden took office, he made a goal to get at least 100 million vaccine shots into Americans' arms in his first 100 days — and we’re already way past that with more than a month to spare. But vaccine eligibility can be confusing depending on where you live. Yahoo News Producer Emmi Vélez explains. Follow us on: Facebook: https://www.facebook.com/yahoonews Instagram: https://www.instagram.com/yahoonews/ Twitter: https://twitter.com/yahoonews TikTok: https://www.tiktok.com/@yahoonews Website: https://news.yahoo.com/ #COVIDVaccine #COVID19