New York: March 3, 2020

On January 27, 2021 we began removing negatives that were created from mixed units (specimens minus cases or test encounters minus cases) for states that are using explicit totals in our main total test results field (called totalTestResults in the API). New York never reported negatives directly and always reported in encounters, so the total time series was removed.

On December 28, 2020, we cleared the history of New York's Confirmed Cases (PCR) field. We appear to have stored New York's cases count in our Confirmed Cases (PCR) field in addition to our Positive field because New York calls these cases "Total Tested Positive." However, we don't seem to have had sufficient evidence for this classification. "Positive" could have been antigen or antibody positive. Moreover, according to reporting by Kaiser Health News and The New York Times from the past few months, New York state includes antigen testing results in both its positive and total test counts.

Backfilling Total Test Encounters (PCR) and Positive Cases (PCR) from NY's dataset, and updating a few days at the beginning of the series for positives and negatives.