İrem GÖL -TDO- According to a research published by the academics at Hong Kong University in the Lancet, revealed that the real number of the coronavirus cases in China may have been higher. China reported more than 55,000 cases by the 20th of February. However, the study claims that the real number can be 232,000, four times higher than the reported numbers.
National Health Commission published seven different versions of a case definition for Covid-19 between 15 January and 3 March. The study claims that the definition of the coronavirus case has a substantial effect on how many infections are detected cases. Therefore, if the definition of a Covid-19 case that was later used has been applied from the outset the reported number could be different, being four times higher.
The study says: “If the fifth version of the case definition had been applied throughout the outbreak with sufficient testing capacity, we estimated that by 20 February 2020, there would have been 232,000 confirmed cases in China as opposed to the 55,508 confirmed cases reported.” As scientific knowledge and laboratory capacity evolved, the definition of a confirmed case has broadened to include cases with milder symptoms, or without epidemiological links to Wuhan or other known cases.