The First Lady of the United States was in McLean, Virginia, Monday as part of the push to get children vaccinated against COVID-19 across the country. Dr. Jill Biden urged parents and guardians to vaccinate their children against the virus during a visit to a pediatric vaccination clinic at Franklin Sherman Elementary School. The elementary school has made headlines when it comes to vaccines in the past. It was the first school to administer the polio vaccine back in 1954.