Sequencing key in 'race' against variants, experts say
The many COVID-19 variants that have been spreading around the globe and here in Massachusetts could have ramifications for the state's economic reopening and vaccination efforts, but first the Bay State needs to get a better snapshot of how prevalent these mutants are, experts told lawmakers Tuesday. The U.S. Centers for Disease Control and Prevention has identified five unique mutations of the COVID-19 virus as "variants of concern," meaning there's evidence that these circulating strains could be more contagious, cause more severe disease, or blunt the efficacy of treatments and vaccines. ...