Volume 28, Number 1—January 2022
Research
Coronavirus Disease Case Definitions, Diagnostic Testing Criteria, and Surveillance in 25 Countries with Highest Reported Case Counts
Table 3
Selected confirmed case definition criteria across 25 countries with the highest COVID-19 case counts, current as of January 1, 2021*
Country |
Diagnostic testing |
Clinical symptoms |
Epidemiologic criteria |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
PCR test |
Antigen test |
Ab test |
Positive test (NS) |
Radiograph imaging |
Meet suspected case definition |
Loss of taste or smell |
Travel history |
Hosp. |
Confirmed contact |
|||
WHO definition (reference) |
X | |||||||||||
Argentina | X | X | X | X | X | |||||||
Bangladesh† | X | |||||||||||
Brazil | X | X | X | X | X | X | ||||||
Chile | X | X | X | X | ||||||||
Colombia | X | X | ||||||||||
France‡ | X | X | ||||||||||
Germany‡ | X | X | ||||||||||
India† | X | |||||||||||
Indonesia | X | |||||||||||
Iran | X | |||||||||||
Iraq† | X | |||||||||||
Israel | X | |||||||||||
Italy‡ | X | X | ||||||||||
Mexico | X | X | X | X | ||||||||
Pakistan † | X | |||||||||||
Peru | X | X | X | X | X | X | ||||||
Philippines† | X | X | ||||||||||
Russia | X | X | X | |||||||||
Saudi Arabia | X | X | X | X | X | |||||||
South Africa | X | |||||||||||
Spain | X | X | X | X | ||||||||
Turkey | X | X | X | X | X | X | ||||||
Ukraine | X | |||||||||||
United Kingdom | X | |||||||||||
United States | X | |||||||||||
No. (%) countries§ | 18 (72) | 10 (40) | 2 (8) | 7 (28) | 1 (4) | 7 (28) | 6 (24) | 3 (12) | 4 (16) | 6 (24) |
*Complete data are available in Appendix Table 7 ; X indicates the criterion was sufficient for, or a potential component of, the confirmed case definition requirement(s). Full confirmed case definitions can be found in Appendix Table 6. Ab, antibody; hosp., hospitalized; NS, not specified; WHO, World Health Organization. †World Health Organization definition (confirmed case definition did not change between March 2020 and August 2020 update). ‡European Centre for Disease Prevention and Control definition. §Denominator is 25 countries with confirmed case definitions.
1These authors contributed equally to this article.