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Document the removal of the 10 October issue of deaths signals #247

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4 changes: 2 additions & 2 deletions docs/api/covidcast-signals/indicator-combination.md
Original file line number Diff line number Diff line change
Expand Up @@ -200,8 +200,8 @@ The resampling method for each input source is as follows:
## Compositional Signals: Confirmed Cases and Deaths

* **First issued:** 7 July 2020
* **Number of data revisions since 19 May 2020:** 0
* **Date of last change:** never
* **Number of data revisions since 19 May 2020:** 1
* **Date of last change:** [12 October 2020](../covidcast_changelog.md#indicator-combination)
* **Available for:** county, msa, hrr, state (see [geography coding docs](../covidcast_geography.md))

These signals combine the cases and deaths data from JHU and USA Facts. This is
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4 changes: 2 additions & 2 deletions docs/api/covidcast-signals/usa-facts.md
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Expand Up @@ -8,8 +8,8 @@ grand_parent: COVIDcast API
{: .no_toc}

* **Source name:** `usa-facts`
* **Number of data revisions since 19 May 2020:** 0
* **Date of last change:** Never
* **Number of data revisions since 19 May 2020:** 1
* **Date of last change:** [12 October 2020](../covidcast_changelog.md#usa-facts)
* **Available for:** county, hrr, msa, state (see [geography coding docs](../covidcast_geography.md))

This data source of confirmed COVID-19 cases and deaths is based on reports made
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16 changes: 16 additions & 0 deletions docs/api/covidcast_changelog.md
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Expand Up @@ -17,6 +17,12 @@ we **strongly recommend** that anyone using the API to regularly download data
should subscribe to this list. The list will only be used to announce API
changes, data corrections, and other information relevant to API users.

## Table of contents
{: .no_toc .text-delta}

1. TOC
{:toc}

## Sources and Signals
### `doctor-visits`
### `fb-survey`
Expand Down Expand Up @@ -66,3 +72,13 @@ Standard errors are now included in the `nmf_day_doc_fbc_fbs_ght` signal for all
* `nmf_day_doc_fbc_fbs_ght`
* all geo levels
* all dates

#### 12 October 2020

The 10 October 2020 issue of all `indicator-combination` deaths signals has been removed from the API. These signals are primarily constructed of USAFacts data, whose 10 October 2020 issue was discovered to be corrupt on 11 October and repaired on 12 October. Subsequent issues have adequate coverage of all regions and dates which were included in the 10 October issue, so this change only affects forecasters which intend to pull training data with an `as_of` or `issues` parameter set to 20201010.

### `usa-facts`

#### 12 October 2020

The 10 October 2020 issue of all `usa-facts` deaths signals has been removed from the API. The file for deaths provided by USAFacts on 10 October included cases data instead. The resulting spurious 100× increase in magnitude of COVIDcast `usa-facts` deaths signals was noticed on 11 October and repaired on 12 October. Subsequent issues have adequate coverage of all regions and dates that were included in the 10 October issue, so this change only affects forecasters that intend to pull training data with an `as_of` or `issues` parameter set to 20201010.