Protecting against zika virus with a microarray patch

The HD-MAP patch offers several key advantages that make it a game-changer in Zika virus prevention:

• Simple application: Applying the patch is a straightforward process, eliminating the need for needles or syringes.
• Painless experience: Patients can receive the vaccine without the discomfort associated with traditional injections.
• Efficient vaccine delivery: Thousands of tiny microprojections in the patch deliver the vaccine beneath the skin's surface, ensuring rapid protection.
• Enhanced immune response: The patch triggers T-cell responses that are approximately 270 percent higher compared to needle or syringe delivery methods.

The Zika virus poses a significant threat to regions across the Pacific, Southeast Asia, India, Africa, South, and Central America. While it typically causes mild illness, infection during pregnancy can result in miscarriages, stillbirths, or infants born with congenital malformations. The lack of a licensed vaccine has left many vulnerable.

In response to the Zika outbreak, researchers at The University of Adelaide developed a unique vaccine that targets a specific protein, NS1, within the virus. This approach ensures that vaccination does not exacerbate symptoms for individuals infected with related viruses, such as dengue fever.

The microarray patch technology, coupled with the innovative vaccine, may have broader implications beyond Zika virus prevention. By targeting a protein central to the replication of flaviviruses, this approach could be adapted to combat other diseases in the flavivirus family, such as dengue and Japanese encephalitis. Additionally, the patch's ability to maintain vaccine potency at elevated temperatures—up to 40 degrees Celsius for four weeks—addresses the challenge of refrigeration in low- and middle-income countries.

This groundbreaking research has been made possible through funding from the National Health and Medical Research Centre (NHMRC) and The Hospital Research Foundation Group Fellowship, which supported the dedicated team of scientists and researchers working tirelessly to protect global health.

MEDICA-tradefair.com; Source: University of Queensland