Microneedle patch delivers COVID-19 DNA vaccine; doesn’t require cold storage (IMAGE) American Chemical Society Caption This microneedle patch could someday replace a needle for delivering COVID-19 vaccines. Credit Adapted from ACS Nano 2021, DOI: 10.1021/acsnano.1c03252 Usage Restrictions Image may only be used with credit shown. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.