PolitiFact @PolitiFact
A reader recently asked us: "How do you say delta variant when there is no test for it?" Routine individual tests don’t reveal whether COVID-19 was caused by the delta variant. Scientists use genomic sequencing to determine what percentage of cases were caused by the variant. — PolitiTweet.org
PolitiFact @PolitiFact
Testing of national samples, not individual testing, finds how many COVID-19 cases are caused by the delta variant. https://t.co/Id2jo0yGZt