Not sure about Covid-19 vaccine jab? Experts discover new alternative

To understand the mechanism of the nasal vaccines, the researchers first injected mice with a traditional mRNA COVID-19 shot, directly into the muscle. Later, they gave the mice a booster vaccine through the nose. The researchers wanted to see the effects of vaccine boosters that don’t contain special ingredients known as adjuvants

from Times of India https://ift.tt/P34kFMG