Vaccines 'exceeding expectations' and performing remarkably well, say scientists

There is good evidence from early real-world data that Covid-19 vaccines are working after the first dose, experts have said.

It has been a long pandemic and feels like an even longer lockdown. Vaccines are the path out, they tell us, so five months into the global roll-outs, what have we learned?

It is fair to say scientists are excited about the vaccines available to Ireland; mRNA shots from Moderna and Pfizer/BioNTech, and adenovirus vector jabs from AstraZeneca and Johnson & Johnson (J&J).