When someone has COVID-19 twice, months apart, is it a reinfection or recrudescence of the original infection? In this case report we use genomic data to discriminate between the two:
https://t.co/nG6HyZ0n9n
👩💻 If this is what ChatGPT is like (a variant of InstructGPT), then GPT-4 is going to be *bonkers*.
👇🏻A thread of my favorite examples of ChatGPT, for source code-related tasks:
https://t.co/GPvNDXZVd0
Got a + SARS-CoV-2 nucleic acid amp test (NAAT) result ≥45 days after an initial + result? How do you distinguish persistent RNA detection from genuine reinfection?
Read our new paper (big collab w/ @mghid, @mghpath, @sabetilab 🥳) in @cidjournal: https://t.co/SuuWK0Q2iQ
👀🧵👇
Lesson here: important for families to be COVID-careful when students are home from school, and for schools to be vigilant at the start of terms. Prob also wise for schools with testing programs to continue them over break & maybe offer extra tests for contacts of students.
Another thing this plot tells us is that just because school's out, transmissions chains to students do not necessarily stop. We found case clusters before and after winter break (top cluster), with a cryptic transmission chain of 2-3 hops connecting them.
We characterized the viral lineage B.1.429.1, a descendant of a former Variant of Concern, and considered sociobehavioral and viral phenotypic factors at play in its rapid expansion. (8/x)
The cases linking the clusters are unknown to us & so un-sequenced—could be people outside the school community connected to those who are, or folks from the university who spent time together over the break.
🏫School is in session: When SARS-CoV-2 hits a university community, does it spread like wildfire? Are some more likely to catch it than others? @sabeti_lab, @ColoradoMesaU & @fathominfo have been working together to find out so students can be better protected in the future 🧵…
@sabeti_lab@ColoradoMesaU@fathominfo@EmilyAnthes We looked at a ton of anonymized info for greater understanding: 1) dates+attributes of cases; 2) viral genomes from sequenced diagnostic tests; 3) viral load & sequence data from residential wastewater, and 4) contact tracing data, collected traditionally+digitally.
Does that make sense clinically? An IgG assay for anti-SARS-CoV-2 antibodies was negative at the start of the second infection. We speculate lack of antibodies made the patient susceptible to reinfection. All data taken together, we identified this to be a case of *reinfection*.