Home Health J.&J. Vaccine May Be Less Effective Against Delta, Study Suggests 2 months ago 2 months ago Health J.&J. Vaccine May Be Less Effective Against Delta, Study Suggests by admin 2 months ago2 months ago 2views 0 Many who received the shot may need to consider boosters, the authors said. But federal health officials do not recommend second doses. Source HealthLike it? Share with your friends! 0 What's Your Reaction? hate 0 hate confused 0 confused fail 0 fail fun 0 fun geeky 0 geeky love 0 love lol 0 lol omg 0 omg win 0 win Posted by admin 0 Comments Cancel replyYour email address will not be published. Required fields are marked * Save my name, email, and website in this browser for the next time I comment.