Among the changes is Walmart announcement that it will allow walk-in vaccinations at its pharmacies.

Subscribe to WCVB on YouTube now for more: http://bit.ly/1e8lAMZ

Get more Boston news: http://www.wcvb.com
Like us: https://www.facebook.com/wcvb5
Follow us: https://twitter.com/WCVB
Instagram: https://www.instagram.com/wcvb5/