Moderna Inc. vaccines designed to protect against the worrisome coronavirus variants identified in South Africa and Brazil have yielded promising results when tested in mice, according to new data.
The company tested two new approaches against the variants – a single-dose “booster” for mice vaccinated months earlier with both doses of the original Moderna vaccine, and a separate new two-shot version combining the original vaccine with the booster in mice that had never been vaccinated.
In both scenarios, according to a paper posted on Tuesday on bioRxiv ahead of peer review, the treated animals had “significant” levels of antibodies against the original strain of the virus and …
Keep on reading: Moderna vaccines promising against variants in mouse study