I’m looking for sample strains that are similar to the purported origin of the Delta SARS-CoV2 wave. I know that some stains suffer from wrongly associated dates, so I don’t want to just take the earliest B.1.617.2 strain in GISAID. I wondered if Nextstrain had suggestions for very early Delta-like strains that have had their sampling dates verified. For example, I note that Sharon Peacock in expert reaction to cases of variant B.1.617 (the ‘Indian variant’) being investigated in the UK | Science Media Centre mentions a 5th Oct 2020, B.1.617 strain, but I am not sure how to get the GISAID ID for that strain, or if it is present in Nextstrain?