When Montana reports no data, several days of data, or unusual data (such as decreases in values that should increase), our volunteers note it here on the date the anomaly occurred. We also note here changes in our own methodology that affect the data.
Negative test results reported in our API and CSVs are calculated by subtracting Confirmed cases from Total PCR tests (specimens) in the absence of better data.
On December 25, 2020, Montana announced on their COVID-19 dashboard that there would be no update to their data on December 25, 2020, or on January 1, 2021 due to the holidays. We were able to update Currently in ICU and Currently on Ventilator from Montana's separate hospitalization source.
On December 14, 2020, Montana announced that due to updates to their data reporting system on December 13, 2020, no new cases could be reported on December 13, 2020. We were unable to update Cases (confirmed + probable) and Negative PCR tests (people) on December 14, 2020.
On November 16, 2020, Montana’s Confirmed cases increased by more than their Total PCR tests (specimens) without explanation. As a result Negative test results which are calculated by subtracting Confirmed cases from Total PCR tests (specimens) decreased.
On November 8, 2020, Montana's reported Recovered value decreased by 32 with no explanation.