Glossary

A brief description of some terms that you may find throughout this website:

Observation	A single report of cholera cases, deaths, or both in a place and time period.
Observation collection (OC)	A group of observations that typically represent data from a single source document. OCs also include associated metadata on the source, source document, and case definitions.
Source	Name of data source (include title and reporting organization)
Primary Time Criteria	What event is associated with the times reported in the observation collection (e.g., symptom onset date, date of clinic visit)
Observation Count	The number of time and location specific data points included in this observation collection.
Location	Location name formatted with WHO region code (e.g., AFR is WHO AFRO), ISO 3-letter country code, and names of subnational administrative units.
TL	"Time Left" is a lower bound in time.
TR	"Time Right" is an upper bound in time.
sCh	Number of suspected cholera cases
cCh	Number of confirmed cholera cases
Deaths	Number of cholera-associated deaths
UID	Unique identifier for the observation collection (also known as OC ID)
Source Collection	OC that serves as the source of a clean Generated Collection. All Source Collections should have the Unified Source tag.
Generated Collection	OC generated from a Source Collection. All Generated Collections should have non-overlapping observations in space and time and the Unified tag.
sCh_L	the number of suspected cases is no greater than the reported value (left censoring)
sCh_R	the number of suspected cases is greater than the reported value (right censoring)
cCh_L	the number of confirmed cases is no greater than the reported value (left censoring)
cCh_R	the number of confirmed cases is greater than the reported value (right censoring)
deaths_L	the number of cholera-associated deaths is no greater than the reported value (left censoring)
deaths_R	the number of cholera-associated deaths is greater than the reported value (right censoring)
Primary	A flag that indicates that the observation represents data from the whole population (e.g., not stratified by characteristics like age and sex). This flag will only be present for datasets that have been audited and verified by senior members of the study team. Some observations may indeed be "Primary" but not flagged as such.
Phantom	a flag that indicates that the observation was applied by a source document, but nowhere explicitly stated (e.g., adding subnational observations to create a single country-level observation that was not reported in the document)