The latest results from a clinical trial in the U.K. show that a fourth dose of mRNA COVID-19 vaccines can boost antibody ...

Those subjects with persistent humoral and cellular immune responses from the third dose did not display ... neutralization of Omicron, there is all the more urgency to use [fourth] doses ...

At the onset of the Omicron wave ... patients received their third dose and fourth dose at a median of 161 and 14 days, respectively. The authors did not observe a correlation between age with ...

British Columbia health officials are still undecided on whether fourth vaccine doses will be ... of communication and credibility. “We’ve not done a good enough job to make people understand that ...

The fourth dose of a Covid vaccine works extremely well but it might be better to delay rolling it out to younger, healthier ...

British Columbia health officials are still undecided on whether fourth vaccine doses will be made available to the general ...

A fourth-dose Covid ... does not suggest we should give up and have no further boosters. “On the contrary, many of us, even with high apparent antibody levels, actually show [little] protective ...

Most of the studies showing benefit have used boosters of the same type as the original series, so that’s also a perfectly good option ... and probably do not need a fourth dose.

A seemingly endless stream of “subvariants” of omicron, the most recent Greek-letter variant, has emerged in the past few ...