WASHINGTON, United States (AFP) — US vaccine maker Moderna expressed confidence Monday that its booster shot was effective against the Omicron variant, after the announcement of laboratory results it described as “reassuring.” “We’ll be able to rely on this vaccine to address the near term surge of Omicron cases,” Stephen Hoge, president of Moderna, said on a conference call. However he said tests showed that after only two doses, protection against Omicron was “substantially lower” […]