Vaccination

Child given world’s first drone-delivered vaccine in Vanuatu

The vaccine delivery covered almost 40 kilometers of rugged mountainous terrain from Dillon’s Bay on the west side of the island to the east landing in remote Cook’s Bay, where 13 children and five pregnant women were vaccinated by Miriam Nampil, a registered nurse. Cook’s Bay, a small, scattered community that does not have a health centre or electricity, is only accessible by foot or small local boats.

Why flu shots fail even when the match is right

A study published Wednesday in the journal Science Translational Medicine examines the question: Why did one vaccine offer 35% less protection against the flu?

The less-effective vaccine failed to activate dendritic cells, which are key to the immune system's defense, the researchers discovered, and it failed to stimulate an early immune response.