It’s worth noting that most, but not all, vaccines are given in the muscle – this is known as an intramuscular injection. A healthcare worker administers a dose of the Pfizer-BioNTech Covid-19 vaccine ...

Your deltoid muscles make up a main muscle group in your upper body. They’re connected with many other muscles and bones in your upper back, neck, and shoulder region and are extremely mobile. They ...

The deltoid is a round muscle that goes around the top of your upper arm and shoulder. The main function of the deltoid is to help you lift and rotate your arm. There are three parts of the deltoid ...

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 ...