Developing effective needleless vaccine to protect children from dangerous viruses

Millions of people are infected with hepatitis B every year. Hundreds of thousands die. And small children are particularly at risk.

From https://www.news-medical.net/news/20190503/Developing-effective-needleless-vaccine-to-protect-children-from-dangerous-viruses.aspx

from
https://healthnews010.wordpress.com/2019/05/05/developing-effective-needleless-vaccine-to-protect-children-from-dangerous-viruses/

From https://heidifrost.blogspot.com/2019/05/developing-effective-needleless-vaccine.html

from
https://heidifrost0.wordpress.com/2019/05/05/developing-effective-needleless-vaccine-to-protect-children-from-dangerous-viruses/