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pH stability of Omicron pseudoviruses. The pH stability of D614G and Omicron lineage pseudoviruses on 293T-ACE2-TMPRSS2 and 293T-ACE2 cells was evaluated. (A and B) Pseudoviruses were untreated or subjected to various pHs for an hour prior to adjusting the pH to 7.0 and infectivity on 293T-ACE2-TMPRSS2 (A) and 293T-ACE2 (B) cells. Results shown are the average of three independent experiments.
