FEB 06, 2017 6:43 AM PST

Will this microneedle patch help wipe out measles?

Image Credit: Gary Meek

A new microneedle patch administered with the press of a thumb could make it easier to vaccinate people against measles and other diseases.

The patch measures about a square centimeter. The underside is lined with 100 solid, conical microneedles made of polymer, sugar, and vaccine. The needles are a fraction of a millimeter long.

When the patch is applied, the microneedles press into the upper layers of the skin, then dissolve within a few minutes, releasing the vaccine. The patch can then be discarded.

Researchers at the Georgia Institute of Technology and the Centers for Disease Control and Prevention (CDC) are developing and testing the patch. A recent study shows the patch produces a strong immune response in an animal model, with no adverse effects or health issues. The findings clear the way for developing proposals for human clinical trials, which could begin as early as 2017.

“Each day, 400 children are killed by measles complications worldwide,” says James Goodson, an epidemiologist from the CDC’s Global Immunization Division. “With no needles, syringes, sterile water, or sharps disposals needed, the microneedle patch offers great hope of a new tool to reach the world’s children faster, even in the most remote areas.

“This advancement would be a major boost in our efforts to eliminate this disease, with more vaccines administered and more lives saved at less cost.”

20 million people each year

The patch would make getting the measles vaccine to remote areas easier because it is more stable at varying temperatures than the currently available vaccines and takes up less space. Because microneedles dissolve in the skin, there is no disposal of needles, reducing the risk of accidental needlesticks. The measles patch is expected be manufactured at a cost comparable to the currently available needle and syringe vaccine.

The 100 microneedle patches (white) in the foreground could replace everything in the background: the 100 needles and syringes, 10 ten-dose vials of measles vaccine with diluent, a biohazards box for sharps waste disposal, and a refrigerator for cold chain storage. (Credit: Gary Meek)

Twenty million people are affected by measles each year. Unfortunately, global coverage with the measles vaccine has been stagnant for the last few years at around 85 percent, which is well below the coverage of up to 95 percent needed to interrupt transmission of the disease.

Because measles is vaccine-preventable and the measles virus survives only in human hosts, the world’s health officials are aiming for measles elimination. Having a simple patch administered by minimally trained vaccinators could help increase vaccination coverage and achieve that goal, researchers say.

Researchers say microneedle technology might lead to improved protection against other diseases, including polio, influenza, rotavirus, rubella, and tuberculosis.

Source: Georgia Tech

This article was originally published on Futurity.org.

About the Author
  • Futurity features the latest discoveries by scientists at top research universities in the US, UK, Canada, Europe, Asia, and Australia. The nonprofit site, which launched in 2009, is supported solely by its university partners (listed below) in an effort to share research news directly with the public.
You May Also Like
MAR 23, 2020
Drug Discovery & Development
Is Fast-Tracking Vaccines for Coronavirus Really Such a Good Idea?
MAR 23, 2020
Is Fast-Tracking Vaccines for Coronavirus Really Such a Good Idea?
Donald Trump has called on researchers to “slash red tape like nobody has even done it before” to accelerate ...
APR 07, 2020
Immunology
Too Much Salt Is Bad for the Immune System
APR 07, 2020
Too Much Salt Is Bad for the Immune System
Excessive salt intake is associated with health consequences for more than just cardiovascular status; the immune system ...
APR 13, 2020
Immunology
Macrophages: An Origin Story
APR 13, 2020
Macrophages: An Origin Story
Macrophages are well-known defense cells of the immune system, responsible for utilizing the cellular breakdown process ...
MAY 19, 2020
Drug Discovery & Development
Can Chinese Drug Cure COVID-19 Without Vaccine?
MAY 19, 2020
Can Chinese Drug Cure COVID-19 Without Vaccine?
Researchers at China’s Peking University have announced that they are developing a treatment capable of blocking C ...
JUN 14, 2020
Chemistry & Physics
Why Are There So Few Black People in STEM?
JUN 14, 2020
Why Are There So Few Black People in STEM?
On June 10th, 2020, thousands of STEM scientists and organizations around the world went on strike to protest systemic r ...
JUL 09, 2020
Immunology
Infection During Pregnancy Could Trigger Autism in Children
JUL 09, 2020
Infection During Pregnancy Could Trigger Autism in Children
Researchers from the Center for Neuroscience at the University of California, Davis have revealed new insights into the ...
Loading Comments...