Drug company Moderna says its combined flu and Covid vaccine, which targets the two diseases in a single shot, has passed a vital part of final-stage scientific checks.
The phase-three trial shows the vaccine arms the body with protective antibodies.
And it does so as effectively as separate flu and Covid shots, results suggest.
Fewer injections would be more convenient and simpler, Moderna says.
Chief executive Stephane Bancel told BBC News he hoped the messenger ribonucleic acid (mRNA) vaccine could be made widely available in 2026 - or perhaps, 2025.
At the very least, two shots is potentially two spots a little sore.
However some people won’t do them at the same time - my ex insisted my kids to it separately , with a few weeks in between. Of course she also gets a sore arm and occasionally minor symptoms for a day or two so maybe