‘Americans of all shapes and sizes are heading to pharmacies and doctors’ offices this fall for flu and Covid shots, but they may not know that size matters when it comes to the needle going into their arms.
Centers for Disease Control and Prevention guidance stipulates that men and women up to around 150 pounds should get a one-inch long needle.
But a longer needle of about one and a half inches will be necessary for adults over 200 pounds to penetrate fat and deep muscle tissue.’
https://www.dailymail.co.uk/health/article-12645751/needles-CDC-Covid-flu-vaccine-obese.html
Here…
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8580854/
h/t A Deplorable Neanderthal