Prevention: Bigger needles for better vaccinations

Article

New York Times

To a patient, few things look bigger than that needle a doctor is about to plunge who-knows-where to administer a vaccine.

But some doctors are arguing that in many cases, those syringes ought to be even bigger.

Writing in a recent issue of The British Medical Journal, the doctors said that for some people, especially overweight ones, the needles were simply too small to be effective.

They cited a recent study of 220 adults that found that the standard needle (which they said was five-eighths of an inch long) could not penetrate the upper arms of 17 percent of the men and 50 percent of the women because of variations in the thickness of fat.

For men weighing 130 to 260 pounds, and for women weighing 132 to 198 pounds, it may be better to use a one-inch needle, the researchers said. And for women above 198 pounds, they said, a one-and-a-half inch needle may be in order.

"It is essential that vaccines reach the muscle to ensure that the body's immune response is triggered and to reduce the likelihood of an adverse reaction," the journal said.

Recent Videos
Infection Control Today's Infection Intel: Staying Ahead With Company Updates and Product Innovations.
COVID-19 presentations at IDWeek in Las Angeles, California by Invivyd.   (Adobe Stock 333039083 by Production Perig)
Long COVID and Other Post-Viral Syndromes
Meet Jenny Hayes, MSN, RN, CIC, CAIP, CASSPT.
Infection Control Today Editorial Advisory Board: Fibi Attia, MD, MPH, CIC.
Andrea Thomas, PhD, DVM, MSc, BSc, director of epidemiology at BlueDot
mpox   (Adobe Stock 924156809 by Andreas Prott)
Meet Alexander Sundermann, DrPH, CIC, FAPIC.
Veterinary Infection Prevention
Related Content