How good is SGTF surveillance in the US? Could we make it better?
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Not great, but picking up Problem is, there’s a decent amount of non-B.1.1.7 SGTF still floating around, and the sequencing to confirm can lag, making contact tracing difficult Data from Helix, showing only 75% is B117 https://www.helix.com/pages/helix-covid-19-surveillance-dashboard …pic.twitter.com/dgpUveBJQH
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It could but is anyone working on that project? Would require a specific focus, otherwise just as likely to make tenuous links.
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At the very least, we should be getting an age breakdown of B.1.1.7 cases Even without contact tracing, difficult given the time needed to sequence and confirm, we can infer some contact/spread point from that data
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@awyllie13 0.5oz spit samples are stable and would allow snapshots of infectivity over time. I think more stable than PCR nasopharyngeal swab. We could also tackle the school question by collecting spit samples and using them for backtracing. And use it to watch B117/variants. -
Indeed! We just need more PCR assays to be screening for these variants being done or more sequencing of positive samples.
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