A new study has shown promising results for a nasal COVID-19 vaccine, according to researchers at the Institute of Virology at Freie Universität Berlin in Germany.
When two doses of the live nasal vaccine were administered to hamsters, the animals showed a stronger immune response compared to their response to two doses of the vaccines that are currently available.
The study was published in the journal Nature Microbiology on Monday.
Today, there are four approved COVID vaccines in the U.S. — all of which are administered via injection into the muscle, per the Centers for Disease Control and Prevention (CDC).
The Pfizer-BioNTech and Moderna vaccines are both mRNA vaccines, which use mRNA (messenger RNA) to trigger cells to produce a viral protein.
This prompts the immune system to create antibodies.
