Cornelius Roemer. (2021, December 22). @mccarthy_kr I took a look at all these NY sequences. I don’t think these point mutations S:681H are real. Why? Because they appear all over the Omicron diversity. Some sequences have S:346K, some S:701V, most miss S679K, a few have it. That’s the signature of contamination/co-infection. Https://t.co/DcJD4q44EM [Tweet]. @CorneliusRoemer. https://twitter.com/CorneliusRoemer/status/1473507369455923203

Zhong, H., Wang, Y., Shi, Z., Zhang, L., Ren, H., He, W., Zhang, Z., Zhu, A., Zhao, J., Xiao, F., Yang, F., Liang, T., Ye, F., Zhong, B., Ruan, S., Gan, M., Zhu, J., Li, F., Li, F., … Zhao, J. (2020). Characterization of Microbial Co-infections in the Respiratory Tract of hospitalized COVID-19 patients. MedRxiv, 2020.07.02.20143032. https://doi.org/10.1101/2020.07.02.20143032