Most people don’t want to think about the needle part of getting a vaccine any more than they have to — but you might want to start. Your weight may mean that you need a larger needle than you assumed ...

NEW YORK – Our ever-expanding waistlines may have outgrown the doctor's needle, researchers say, in what could be another casualty of the obesity epidemic. In a new study, the researchers report that ...

The Medical Research Institute of New Zealand (MRINZ) has made a major breakthrough in determining what needle length is required to ensure successful intramuscular (IM) deposition of vaccines. Most ...

When a salmonella bacterium attacks a cell, it uses a nanoscopic needle to inject it with proteins to aid the infection. If the needle is too short, the cell won't be infected. Too long, and the ...