Annex 1: Data, table and figure notes
Caution must be taken when interpreting all data presented. Differences are to be expected
between information products published by WHO, national public health authorities, and
other sources using different inclusion criteria and different data cut-off times. While steps
are taken to ensure accuracy and reliability, all data are subject to continuous verification and
change. Case detection, definitions, testing strategies, reporting practice, and lag times differ
between countries/territories/areas. These factors, amongst others, influence the counts
presented, with variable underestimation of true case and death counts, and variable delays
to reflecting these data at global level.
The designations employed, and the presentation of these materials do not imply the
expression of any opinion whatsoever on the part of WHO concerning the legal status of any
country, territory or area or of its authorities, or concerning the delimitation of its frontiers or
boundaries. Dotted and dashed lines on maps represent approximate border lines for which
there may not yet be full agreement. Countries, territories and areas are arranged under the
administering WHO region.
The mention of specific companies or of certain manufacturers’ products does not imply that
they are endorsed or recommended by WHO in preference to others of a similar nature that
are not mentioned. Errors and omissions excepted, the names of proprietary products are
distinguished by initial capital letters.
[1]
All references to Kosovo should be understood to be in the context of the United Nations
Security Council resolution 1244 (1999). In the map, number of cases of Serbia and Kosovo
(UNSCR 1244, 1999) have been aggregated for visualization purposes.
Counts reflect laboratory-confirmed cases and deaths, based on WHO case
definitions, unless stated otherwise (see Country, territory, or area-specific updates and
errata), and include both domestic and repatriated cases.
Other*: includes cases reported from international conveyances.
Due to the recent trend of countries conducting data reconciliation exercises which remove
large numbers of cases or deaths from their total counts, WHO will now display such data as
negative numbers in the “new cases” / “new deaths” columns as appropriate. This will aid
readers in identifying when such adjustments occur. When additional details become
available that allow the subtractions to be suitably apportioned to previous days, graphics will
be updated accordingly. Prior situation reports will not be edited; see covid19.who.int for the
most up-to-date data.