Expert explains how we’ll know if vaccines work against variant No Comments Uncategorized Dr. Peter Hotez discusses the Omicron variant and when we’ll know if vaccines are effective against it. Dr. Peter Hotez discusses the Omicron variant and when we’ll know if vaccines are effective against it. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)